diff --git a/backend/.env.dist b/backend/.env.dist
index ffcc0882a..a3cf28bd4 100644
--- a/backend/.env.dist
+++ b/backend/.env.dist
@@ -68,10 +68,11 @@ FEDERATION_XCOM_SENDCOINS_ENABLED=false
 # GMS
 # GMS_ACTIVE=true
 # Coordinates of Illuminz test instance
-#GMS_URL=http://54.176.169.179:3071
-GMS_URL=http://localhost:4044/
+#GMS_API_URL=http://54.176.169.179:3071
+GMS_API_URL=http://localhost:4044/
+GMS_DASHBOARD_URL=http://localhost:8080/
 
 # HUMHUB
 HUMHUB_ACTIVE=false
 #HUMHUB_API_URL=https://community.gradido.net/
-#HUMHUB_JWT_KEY=
\ No newline at end of file
+#HUMHUB_JWT_KEY=
diff --git a/backend/.env.template b/backend/.env.template
index bb68d85f6..71fbcbf31 100644
--- a/backend/.env.template
+++ b/backend/.env.template
@@ -66,9 +66,13 @@ FEDERATION_XCOM_SENDCOINS_ENABLED=$FEDERATION_XCOM_SENDCOINS_ENABLED
 
 # GMS
 GMS_ACTIVE=$GMS_ACTIVE
-GMS_URL=$GMS_URL
+GMS_API_URL=$GMS_API_URL
+GMS_DASHBOARD_URL=$GMS_DASHBOARD_URL
+GMS_WEBHOOK_SECRET=$GMS_WEBHOOK_SECRET
+GMS_CREATE_USER_THROW_ERRORS=$GMS_CREATE_USER_THROW_ERRORS
 
 # HUMHUB
 HUMHUB_ACTIVE=$HUMHUB_ACTIVE
 HUMHUB_API_URL=$HUMHUB_API_URL
-HUMHUB_JWT_KEY=$HUMHUB_JWT_KEY
\ No newline at end of file
+HUMHUB_JWT_KEY=$HUMHUB_JWT_KEY
+
diff --git a/backend/src/apis/gms/GmsClient.ts b/backend/src/apis/gms/GmsClient.ts
index 32a3802ff..a59f7f6b5 100644
--- a/backend/src/apis/gms/GmsClient.ts
+++ b/backend/src/apis/gms/GmsClient.ts
@@ -7,12 +7,13 @@ import axios from 'axios'
 import { CONFIG } from '@/config'
 import { LogError } from '@/server/LogError'
 import { backendLogger as logger } from '@/server/logger'
+import { ensureUrlEndsWithSlash } from '@/util/utilities'
 
 import { GmsUser } from './model/GmsUser'
 
 /*
 export async function communityList(): Promise<GmsCommunity[] | string | undefined> {
-  const baseUrl = CONFIG.GMS_URL.endsWith('/') ? CONFIG.GMS_URL : CONFIG.GMS_URL.concat('/')
+  const baseUrl = ensureUrlEndsWithSlash(CONFIG.GMS_URL)
   const service = 'community/list?page=1&perPage=20'
   const config = {
     headers: {
@@ -44,7 +45,7 @@ export async function communityList(): Promise<GmsCommunity[] | string | undefin
 }
 
 export async function userList(): Promise<GmsUser[] | string | undefined> {
-  const baseUrl = CONFIG.GMS_URL.endsWith('/') ? CONFIG.GMS_URL : CONFIG.GMS_URL.concat('/')
+  const baseUrl = ensureUrlEndsWithSlash(CONFIG.GMS_URL)
   const service = 'community-user/list?page=1&perPage=20'
   const config = {
     headers: {
@@ -80,7 +81,7 @@ export async function userList(): Promise<GmsUser[] | string | undefined> {
 }
 
 export async function userByUuid(uuid: string): Promise<GmsUser[] | string | undefined> {
-  const baseUrl = CONFIG.GMS_URL.endsWith('/') ? CONFIG.GMS_URL : CONFIG.GMS_URL.concat('/')
+  const baseUrl = ensureUrlEndsWithSlash(CONFIG.GMS_URL)
   const service = 'community-user/list?page=1&perPage=20'
   const config = {
     headers: {
@@ -118,7 +119,7 @@ export async function userByUuid(uuid: string): Promise<GmsUser[] | string | und
 
 export async function createGmsUser(apiKey: string, user: GmsUser): Promise<boolean> {
   if (CONFIG.GMS_ACTIVE) {
-    const baseUrl = CONFIG.GMS_URL.endsWith('/') ? CONFIG.GMS_URL : CONFIG.GMS_URL.concat('/')
+    const baseUrl = ensureUrlEndsWithSlash(CONFIG.GMS_API_URL)
     const service = 'community-user'
     const config = {
       headers: {
@@ -152,7 +153,7 @@ export async function createGmsUser(apiKey: string, user: GmsUser): Promise<bool
 
 export async function updateGmsUser(apiKey: string, user: GmsUser): Promise<boolean> {
   if (CONFIG.GMS_ACTIVE) {
-    const baseUrl = CONFIG.GMS_URL.endsWith('/') ? CONFIG.GMS_URL : CONFIG.GMS_URL.concat('/')
+    const baseUrl = ensureUrlEndsWithSlash(CONFIG.GMS_API_URL)
     const service = 'community-user'
     const config = {
       headers: {
@@ -189,7 +190,7 @@ export async function verifyAuthToken(
   communityUuid: string,
   token: string,
 ): Promise<string> {
-  const baseUrl = CONFIG.GMS_URL.endsWith('/') ? CONFIG.GMS_URL : CONFIG.GMS_URL.concat('/')
+  const baseUrl = ensureUrlEndsWithSlash(CONFIG.GMS_API_URL)
   const service = 'verify-auth-token?token='.concat(token).concat('&uuid=').concat(communityUuid)
   const config = {
     headers: {
diff --git a/backend/src/config/index.ts b/backend/src/config/index.ts
index a73a3be70..82308a52b 100644
--- a/backend/src/config/index.ts
+++ b/backend/src/config/index.ts
@@ -12,14 +12,14 @@ Decimal.set({
 })
 
 const constants = {
-  DB_VERSION: '0083-join_community_federated_communities',
+  DB_VERSION: '0084-introduce_humhub_registration',
   DECAY_START_TIME: new Date('2021-05-13 17:46:31-0000'), // GMT+0
   LOG4JS_CONFIG: 'log4js-config.json',
   // default log level on production should be info
   LOG_LEVEL: process.env.LOG_LEVEL ?? 'info',
   CONFIG_VERSION: {
     DEFAULT: 'DEFAULT',
-    EXPECTED: 'v22.2024-03-14',
+    EXPECTED: 'v23.2024-04-04',
     CURRENT: '',
   },
 }
@@ -145,7 +145,8 @@ const gms = {
   GMS_ACTIVE: process.env.GMS_ACTIVE === 'true' || false,
   GMS_CREATE_USER_THROW_ERRORS: process.env.GMS_CREATE_USER_THROW_ERRORS === 'true' || false,
   // koordinates of Illuminz-instance of GMS
-  GMS_URL: process.env.GMS_HOST ?? 'http://localhost:4044/',
+  GMS_API_URL: process.env.GMS_API_URL ?? 'http://localhost:4044/',
+  GMS_DASHBOARD_URL: process.env.GMS_DASHBOARD_URL ?? 'http://localhost:8080/',
   // used as secret postfix attached at the gms community-auth-url endpoint ('/hook/gms/' + 'secret')
   GMS_WEBHOOK_SECRET: process.env.GMS_WEBHOOK_SECRET ?? 'secret',
 }
diff --git a/backend/src/federation/authenticateCommunities.ts b/backend/src/federation/authenticateCommunities.ts
index 8da8306fd..56899d4b0 100644
--- a/backend/src/federation/authenticateCommunities.ts
+++ b/backend/src/federation/authenticateCommunities.ts
@@ -6,6 +6,7 @@ import { CONFIG } from '@/config'
 // eslint-disable-next-line camelcase
 import { AuthenticationClient as V1_0_AuthenticationClient } from '@/federation/client/1_0/AuthenticationClient'
 import { backendLogger as logger } from '@/server/logger'
+import { ensureUrlEndsWithSlash } from '@/util/utilities'
 
 import { OpenConnectionArgs } from './client/1_0/model/OpenConnectionArgs'
 import { AuthenticationClientFactory } from './client/AuthenticationClientFactory'
@@ -39,9 +40,7 @@ export async function startCommunityAuthentication(
         const args = new OpenConnectionArgs()
         args.publicKey = homeCom.publicKey.toString('hex')
         // TODO encrypt url with foreignCom.publicKey and sign it with homeCom.privateKey
-        args.url = homeFedCom.endPoint.endsWith('/')
-          ? homeFedCom.endPoint
-          : homeFedCom.endPoint + '/' + homeFedCom.apiVersion
+        args.url = ensureUrlEndsWithSlash(homeFedCom.endPoint).concat(homeFedCom.apiVersion)
         logger.debug(
           'Authentication: before client.openConnection() args:',
           homeCom.publicKey.toString('hex'),
diff --git a/backend/src/federation/client/1_0/AuthenticationClient.ts b/backend/src/federation/client/1_0/AuthenticationClient.ts
index f73393255..c1d921823 100644
--- a/backend/src/federation/client/1_0/AuthenticationClient.ts
+++ b/backend/src/federation/client/1_0/AuthenticationClient.ts
@@ -2,6 +2,7 @@ import { FederatedCommunity as DbFederatedCommunity } from '@entity/FederatedCom
 import { GraphQLClient } from 'graphql-request'
 
 import { backendLogger as logger } from '@/server/logger'
+import { ensureUrlEndsWithSlash } from '@/util/utilities'
 
 import { OpenConnectionArgs } from './model/OpenConnectionArgs'
 import { openConnection } from './query/openConnection'
@@ -13,9 +14,7 @@ export class AuthenticationClient {
 
   constructor(dbCom: DbFederatedCommunity) {
     this.dbCom = dbCom
-    this.endpoint = `${dbCom.endPoint.endsWith('/') ? dbCom.endPoint : dbCom.endPoint + '/'}${
-      dbCom.apiVersion
-    }/`
+    this.endpoint = ensureUrlEndsWithSlash(dbCom.endPoint).concat(dbCom.apiVersion).concat('/')
     this.client = new GraphQLClient(this.endpoint, {
       method: 'POST',
       jsonSerializer: {
diff --git a/backend/src/federation/client/1_0/FederationClient.ts b/backend/src/federation/client/1_0/FederationClient.ts
index b9939a12c..0c2b4101b 100644
--- a/backend/src/federation/client/1_0/FederationClient.ts
+++ b/backend/src/federation/client/1_0/FederationClient.ts
@@ -4,6 +4,7 @@ import { GraphQLClient } from 'graphql-request'
 import { getPublicCommunityInfo } from '@/federation/client/1_0/query/getPublicCommunityInfo'
 import { getPublicKey } from '@/federation/client/1_0/query/getPublicKey'
 import { backendLogger as logger } from '@/server/logger'
+import { ensureUrlEndsWithSlash } from '@/util/utilities'
 
 import { PublicCommunityInfoLoggingView } from './logging/PublicCommunityInfoLogging.view'
 import { GetPublicKeyResult } from './model/GetPublicKeyResult'
@@ -16,9 +17,7 @@ export class FederationClient {
 
   constructor(dbCom: DbFederatedCommunity) {
     this.dbCom = dbCom
-    this.endpoint = `${dbCom.endPoint.endsWith('/') ? dbCom.endPoint : dbCom.endPoint + '/'}${
-      dbCom.apiVersion
-    }/`
+    this.endpoint = ensureUrlEndsWithSlash(dbCom.endPoint).concat(dbCom.apiVersion).concat('/')
     this.client = new GraphQLClient(this.endpoint, {
       method: 'GET',
       jsonSerializer: {
diff --git a/backend/src/federation/client/1_0/SendCoinsClient.ts b/backend/src/federation/client/1_0/SendCoinsClient.ts
index bcf303584..2c3fcce4c 100644
--- a/backend/src/federation/client/1_0/SendCoinsClient.ts
+++ b/backend/src/federation/client/1_0/SendCoinsClient.ts
@@ -3,6 +3,7 @@ import { GraphQLClient } from 'graphql-request'
 
 import { LogError } from '@/server/LogError'
 import { backendLogger as logger } from '@/server/logger'
+import { ensureUrlEndsWithSlash } from '@/util/utilities'
 
 import { SendCoinsArgsLoggingView } from './logging/SendCoinsArgsLogging.view'
 import { SendCoinsResultLoggingView } from './logging/SendCoinsResultLogging.view'
@@ -20,9 +21,7 @@ export class SendCoinsClient {
 
   constructor(dbCom: DbFederatedCommunity) {
     this.dbCom = dbCom
-    this.endpoint = `${dbCom.endPoint.endsWith('/') ? dbCom.endPoint : dbCom.endPoint + '/'}${
-      dbCom.apiVersion
-    }/`
+    this.endpoint = ensureUrlEndsWithSlash(dbCom.endPoint).concat(dbCom.apiVersion).concat('/')
     this.client = new GraphQLClient(this.endpoint, {
       method: 'POST',
       jsonSerializer: {
diff --git a/backend/src/federation/client/FederationClientFactory.ts b/backend/src/federation/client/FederationClientFactory.ts
index fe2ff0dbd..6010fa5eb 100644
--- a/backend/src/federation/client/FederationClientFactory.ts
+++ b/backend/src/federation/client/FederationClientFactory.ts
@@ -5,6 +5,7 @@ import { FederationClient as V1_0_FederationClient } from '@/federation/client/1
 // eslint-disable-next-line camelcase
 import { FederationClient as V1_1_FederationClient } from '@/federation/client/1_1/FederationClient'
 import { ApiVersionType } from '@/federation/enum/apiVersionType'
+import { ensureUrlEndsWithSlash } from '@/util/utilities'
 
 // eslint-disable-next-line camelcase
 type FederationClient = V1_0_FederationClient | V1_1_FederationClient
@@ -47,10 +48,7 @@ export class FederationClientFactory {
     const instance = FederationClientFactory.instanceArray.find(
       (instance) => instance.id === dbCom.id,
     )
-    // TODO: found a way to prevent double code with FederationClient::constructor
-    const endpoint = `${dbCom.endPoint.endsWith('/') ? dbCom.endPoint : dbCom.endPoint + '/'}${
-      dbCom.apiVersion
-    }/`
+    const endpoint = ensureUrlEndsWithSlash(dbCom.endPoint).concat(dbCom.apiVersion)
     // check if endpoint is still the same and not changed meanwhile
     if (instance && instance.client.getEndpoint() === endpoint) {
       return instance.client
diff --git a/backend/src/graphql/arg/UpdateUserInfosArgs.ts b/backend/src/graphql/arg/UpdateUserInfosArgs.ts
index a6c80cddd..d3e3dc744 100644
--- a/backend/src/graphql/arg/UpdateUserInfosArgs.ts
+++ b/backend/src/graphql/arg/UpdateUserInfosArgs.ts
@@ -46,6 +46,10 @@ export class UpdateUserInfosArgs {
   @IsBoolean()
   hideAmountGDT?: boolean
 
+  @Field({ nullable: true })
+  @IsBoolean()
+  humhubAllowed?: boolean
+
   @Field({ nullable: true })
   @IsBoolean()
   gmsAllowed?: boolean
@@ -54,6 +58,10 @@ export class UpdateUserInfosArgs {
   @IsEnum(GmsPublishNameType)
   gmsPublishName?: GmsPublishNameType | null
 
+  @Field(() => GmsPublishNameType, { nullable: true })
+  @IsEnum(GmsPublishNameType)
+  humhubPublishName?: GmsPublishNameType | null
+
   @Field(() => Location, { nullable: true })
   @isValidLocation()
   gmsLocation?: Location | null
diff --git a/backend/src/graphql/model/FederatedCommunity.ts b/backend/src/graphql/model/FederatedCommunity.ts
index fb30b0292..01a3996ce 100644
--- a/backend/src/graphql/model/FederatedCommunity.ts
+++ b/backend/src/graphql/model/FederatedCommunity.ts
@@ -1,6 +1,8 @@
 import { FederatedCommunity as DbFederatedCommunity } from '@entity/FederatedCommunity'
 import { ObjectType, Field, Int } from 'type-graphql'
 
+import { ensureUrlEndsWithSlash } from '@/util/utilities'
+
 @ObjectType()
 export class FederatedCommunity {
   constructor(dbCom: DbFederatedCommunity) {
@@ -8,7 +10,7 @@ export class FederatedCommunity {
     this.foreign = dbCom.foreign
     this.publicKey = dbCom.publicKey.toString('hex')
     this.apiVersion = dbCom.apiVersion
-    this.endPoint = dbCom.endPoint.endsWith('/') ? dbCom.endPoint : dbCom.endPoint + '/'
+    this.endPoint = ensureUrlEndsWithSlash(dbCom.endPoint)
     this.lastAnnouncedAt = dbCom.lastAnnouncedAt
     this.verifiedAt = dbCom.verifiedAt
     this.lastErrorAt = dbCom.lastErrorAt
diff --git a/backend/src/graphql/model/User.ts b/backend/src/graphql/model/User.ts
index 166367fd1..a6a5ad199 100644
--- a/backend/src/graphql/model/User.ts
+++ b/backend/src/graphql/model/User.ts
@@ -32,8 +32,10 @@ export class User {
       this.hasElopage = null
       this.hideAmountGDD = user.hideAmountGDD
       this.hideAmountGDT = user.hideAmountGDT
+      this.humhubAllowed = user.humhubAllowed
       this.gmsAllowed = user.gmsAllowed
       this.gmsPublishName = user.gmsPublishName
+      this.humhubPublishName = user.humhubPublishName
       this.gmsPublishLocation = user.gmsPublishLocation
     }
   }
@@ -80,12 +82,18 @@ export class User {
   @Field(() => Boolean)
   hideAmountGDT: boolean
 
+  @Field(() => Boolean)
+  humhubAllowed: boolean
+
   @Field(() => Boolean)
   gmsAllowed: boolean
 
   @Field(() => GmsPublishNameType, { nullable: true })
   gmsPublishName: GmsPublishNameType | null
 
+  @Field(() => GmsPublishNameType, { nullable: true })
+  humhubPublishName: GmsPublishNameType | null
+
   @Field(() => GmsPublishLocationType, { nullable: true })
   gmsPublishLocation: GmsPublishLocationType | null
 
diff --git a/backend/src/graphql/resolver/UserResolver.test.ts b/backend/src/graphql/resolver/UserResolver.test.ts
index e7c873fc4..4fdf387b7 100644
--- a/backend/src/graphql/resolver/UserResolver.test.ts
+++ b/backend/src/graphql/resolver/UserResolver.test.ts
@@ -183,7 +183,9 @@ describe('UserResolver', () => {
               communityUuid: homeCom.communityUuid,
               foreign: false,
               gmsAllowed: true,
+              humhubAllowed: false,
               gmsPublishName: 0,
+              humhubPublishName: 0,
               gmsPublishLocation: 2,
               location: null,
               gmsRegistered: false,
diff --git a/backend/src/graphql/resolver/UserResolver.ts b/backend/src/graphql/resolver/UserResolver.ts
index 7c11776df..436c0aa83 100644
--- a/backend/src/graphql/resolver/UserResolver.ts
+++ b/backend/src/graphql/resolver/UserResolver.ts
@@ -394,8 +394,8 @@ export class UserResolver {
     logger.addContext('user', 'unknown')
     logger.info(`forgotPassword(${email})...`)
     email = email.trim().toLowerCase()
-    const user = await findUserByEmail(email).catch(() => {
-      logger.warn(`fail on find UserContact per ${email}`)
+    const user = await findUserByEmail(email).catch((error) => {
+      logger.warn(`fail on find UserContact per ${email} because: ${error}`)
     })
 
     if (!user || user.deletedAt) {
@@ -559,8 +559,10 @@ export class UserResolver {
       passwordNew,
       hideAmountGDD,
       hideAmountGDT,
+      humhubAllowed,
       gmsAllowed,
       gmsPublishName,
+      humhubPublishName,
       gmsLocation,
       gmsPublishLocation,
     } = updateUserInfosArgs
@@ -617,12 +619,18 @@ export class UserResolver {
     if (hideAmountGDT !== undefined) {
       user.hideAmountGDT = hideAmountGDT
     }
+    if (humhubAllowed !== undefined) {
+      user.humhubAllowed = humhubAllowed
+    }
     if (gmsAllowed !== undefined) {
       user.gmsAllowed = gmsAllowed
     }
     if (gmsPublishName !== null && gmsPublishName !== undefined) {
       user.gmsPublishName = gmsPublishName
     }
+    if (humhubPublishName !== null && humhubPublishName !== undefined) {
+      user.humhubPublishName = humhubPublishName
+    }
     if (gmsLocation) {
       user.location = Location2Point(gmsLocation)
     }
diff --git a/backend/src/graphql/resolver/util/authenticateGmsUserPlayground.ts b/backend/src/graphql/resolver/util/authenticateGmsUserPlayground.ts
index cad98c683..ef3c199c9 100644
--- a/backend/src/graphql/resolver/util/authenticateGmsUserPlayground.ts
+++ b/backend/src/graphql/resolver/util/authenticateGmsUserPlayground.ts
@@ -4,13 +4,16 @@ import { verifyAuthToken } from '@/apis/gms/GmsClient'
 import { CONFIG } from '@/config'
 import { GmsUserAuthenticationResult } from '@/graphql/model/GmsUserAuthenticationResult'
 import { backendLogger as logger } from '@/server/logger'
+import { ensureUrlEndsWithSlash } from '@/util/utilities'
 
 export async function authenticateGmsUserPlayground(
   token: string,
   dbUser: DbUser,
 ): Promise<GmsUserAuthenticationResult> {
   const result = new GmsUserAuthenticationResult()
-  result.url = CONFIG.GMS_URL.concat('/playground')
+  const dashboardUrl = ensureUrlEndsWithSlash(CONFIG.GMS_DASHBOARD_URL)
+
+  result.url = dashboardUrl.concat('playground')
   result.token = await verifyAuthToken(dbUser.communityUuid, token)
   logger.info('GmsUserAuthenticationResult:', result)
   return result
diff --git a/backend/src/util/communityUser.ts b/backend/src/util/communityUser.ts
index 732c585d0..45a142ce8 100644
--- a/backend/src/util/communityUser.ts
+++ b/backend/src/util/communityUser.ts
@@ -52,7 +52,9 @@ const communityDbUser: dbUser = {
   communityUuid: '55555555-4444-4333-2222-11111111',
   community: null,
   gmsPublishName: 0,
+  humhubPublishName: 0,
   gmsAllowed: false,
+  humhubAllowed: false,
   location: null,
   gmsPublishLocation: 2,
   gmsRegistered: false,
diff --git a/backend/src/util/utilities.ts b/backend/src/util/utilities.ts
index c3895cb9e..bc2c2198a 100644
--- a/backend/src/util/utilities.ts
+++ b/backend/src/util/utilities.ts
@@ -29,3 +29,7 @@ export function resetInterface<T extends Record<string, any>>(obj: T): T {
   }
   return obj
 }
+
+export const ensureUrlEndsWithSlash = (url: string): string => {
+  return url.endsWith('/') ? url : url.concat('/')
+}
diff --git a/database/entity/0084-introduce_humhub_registration/User.ts b/database/entity/0084-introduce_humhub_registration/User.ts
new file mode 100644
index 000000000..a375f6748
--- /dev/null
+++ b/database/entity/0084-introduce_humhub_registration/User.ts
@@ -0,0 +1,176 @@
+import {
+  BaseEntity,
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  DeleteDateColumn,
+  OneToMany,
+  JoinColumn,
+  OneToOne,
+  Geometry,
+  ManyToOne,
+} from 'typeorm'
+import { Contribution } from '../Contribution'
+import { ContributionMessage } from '../ContributionMessage'
+import { UserContact } from '../UserContact'
+import { UserRole } from '../UserRole'
+import { GeometryTransformer } from '../../src/typeorm/GeometryTransformer'
+import { Community } from '../Community'
+
+@Entity('users', { engine: 'InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci' })
+export class User extends BaseEntity {
+  @PrimaryGeneratedColumn('increment', { unsigned: true })
+  id: number
+
+  @Column({ type: 'bool', default: false })
+  foreign: boolean
+
+  @Column({
+    name: 'gradido_id',
+    length: 36,
+    nullable: false,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  gradidoID: string
+
+  @Column({
+    name: 'community_uuid',
+    type: 'char',
+    length: 36,
+    nullable: true,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  communityUuid: string
+
+  @ManyToOne(() => Community, (community) => community.users)
+  @JoinColumn({ name: 'community_uuid', referencedColumnName: 'communityUuid' })
+  community: Community | null
+
+  @Column({
+    name: 'alias',
+    length: 20,
+    nullable: true,
+    default: null,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  alias: string
+
+  @OneToOne(() => UserContact, (emailContact: UserContact) => emailContact.user)
+  @JoinColumn({ name: 'email_id' })
+  emailContact: UserContact
+
+  @Column({ name: 'email_id', type: 'int', unsigned: true, nullable: true, default: null })
+  emailId: number | null
+
+  @Column({
+    name: 'first_name',
+    length: 255,
+    nullable: true,
+    default: null,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  firstName: string
+
+  @Column({
+    name: 'last_name',
+    length: 255,
+    nullable: true,
+    default: null,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  lastName: string
+
+  @Column({ name: 'gms_publish_name', type: 'int', unsigned: true, nullable: false, default: 0 })
+  gmsPublishName: number
+
+  @Column({ name: 'humhub_publish_name', type: 'int', unsigned: true, nullable: false, default: 0 })
+  humhubPublishName: number
+
+  @Column({ name: 'created_at', default: () => 'CURRENT_TIMESTAMP(3)', nullable: false })
+  createdAt: Date
+
+  @DeleteDateColumn({ name: 'deleted_at', nullable: true })
+  deletedAt: Date | null
+
+  @Column({ type: 'bigint', default: 0, unsigned: true })
+  password: BigInt
+
+  @Column({
+    name: 'password_encryption_type',
+    type: 'int',
+    unsigned: true,
+    nullable: false,
+    default: 0,
+  })
+  passwordEncryptionType: number
+
+  @Column({ length: 4, default: 'de', collation: 'utf8mb4_unicode_ci', nullable: false })
+  language: string
+
+  @Column({ type: 'bool', default: false })
+  hideAmountGDD: boolean
+
+  @Column({ type: 'bool', default: false })
+  hideAmountGDT: boolean
+
+  @OneToMany(() => UserRole, (userRole) => userRole.user)
+  @JoinColumn({ name: 'user_id' })
+  userRoles: UserRole[]
+
+  @Column({ name: 'referrer_id', type: 'int', unsigned: true, nullable: true, default: null })
+  referrerId?: number | null
+
+  @Column({
+    name: 'contribution_link_id',
+    type: 'int',
+    unsigned: true,
+    nullable: true,
+    default: null,
+  })
+  contributionLinkId?: number | null
+
+  @Column({ name: 'publisher_id', default: 0 })
+  publisherId: number
+
+  @Column({ name: 'gms_allowed', type: 'bool', default: true })
+  gmsAllowed: boolean
+
+  @Column({
+    name: 'location',
+    type: 'geometry',
+    default: null,
+    nullable: true,
+    transformer: GeometryTransformer,
+  })
+  location: Geometry | null
+
+  @Column({
+    name: 'gms_publish_location',
+    type: 'int',
+    unsigned: true,
+    nullable: false,
+    default: 2,
+  })
+  gmsPublishLocation: number
+
+  @Column({ name: 'gms_registered', type: 'bool', default: false })
+  gmsRegistered: boolean
+
+  @Column({ name: 'gms_registered_at', type: 'datetime', default: null, nullable: true })
+  gmsRegisteredAt: Date | null
+
+  @Column({ name: 'humhub_allowed', type: 'bool', default: false })
+  humhubAllowed: boolean
+
+  @OneToMany(() => Contribution, (contribution) => contribution.user)
+  @JoinColumn({ name: 'user_id' })
+  contributions?: Contribution[]
+
+  @OneToMany(() => ContributionMessage, (message) => message.user)
+  @JoinColumn({ name: 'user_id' })
+  messages?: ContributionMessage[]
+
+  @OneToMany(() => UserContact, (userContact: UserContact) => userContact.user)
+  @JoinColumn({ name: 'user_id' })
+  userContacts?: UserContact[]
+}
diff --git a/database/entity/User.ts b/database/entity/User.ts
index e3f15113d..993d983ef 100644
--- a/database/entity/User.ts
+++ b/database/entity/User.ts
@@ -1 +1 @@
-export { User } from './0082-introduce_gms_registration/User'
+export { User } from './0084-introduce_humhub_registration/User'
diff --git a/database/migrations/0084-introduce_humhub_registration.ts b/database/migrations/0084-introduce_humhub_registration.ts
new file mode 100644
index 000000000..858283602
--- /dev/null
+++ b/database/migrations/0084-introduce_humhub_registration.ts
@@ -0,0 +1,16 @@
+/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+export async function upgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  await queryFn(
+    'ALTER TABLE `users` ADD COLUMN IF NOT EXISTS `humhub_allowed` tinyint(1) NOT NULL DEFAULT 0 AFTER `gms_registered_at`;',
+  )
+  await queryFn(
+    'ALTER TABLE `users` ADD COLUMN IF NOT EXISTS `humhub_publish_name` int unsigned NOT NULL DEFAULT 0 AFTER `gms_publish_name`;',
+  )
+}
+
+export async function downgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  await queryFn('ALTER TABLE `users` DROP COLUMN IF EXISTS `humhub_allowed`;')
+  await queryFn('ALTER TABLE `users` DROP COLUMN IF EXISTS `humhub_publish_name`;')
+}
diff --git a/deployment/bare_metal/.env.dist b/deployment/bare_metal/.env.dist
index 68280c096..341bae554 100644
--- a/deployment/bare_metal/.env.dist
+++ b/deployment/bare_metal/.env.dist
@@ -122,11 +122,13 @@ WEBHOOK_ELOPAGE_SECRET=secret
 # GMS
 GMS_ACTIVE=false
 # Coordinates of Illuminz test instance
-#GMS_URL=http://54.176.169.179:3071
-GMS_URL=http://localhost:4044/
+#GMS_API_URL=http://54.176.169.179:3071
+GMS_API_URL=http://localhost:4044/
+GMS_DASHBOARD_URL=http://localhost:8080/
+GMS_WEBHOOK_SECRET=secret
+GMS_CREATE_USER_THROW_ERRORS=false
 
 # HUMHUB
 HUMHUB_ACTIVE=false
 #HUMHUB_API_URL=https://community.gradido.net
 #HUMHUB_JWT_KEY=
-
diff --git a/dht-node/src/config/index.ts b/dht-node/src/config/index.ts
index 4e66aa5f9..f557eee83 100644
--- a/dht-node/src/config/index.ts
+++ b/dht-node/src/config/index.ts
@@ -4,7 +4,7 @@ import dotenv from 'dotenv'
 dotenv.config()
 
 const constants = {
-  DB_VERSION: '0083-join_community_federated_communities',
+  DB_VERSION: '0084-introduce_humhub_registration',
   LOG4JS_CONFIG: 'log4js-config.json',
   // default log level on production should be info
   LOG_LEVEL: process.env.LOG_LEVEL ?? 'info',
diff --git a/federation/src/config/index.ts b/federation/src/config/index.ts
index f8992a360..26b727841 100644
--- a/federation/src/config/index.ts
+++ b/federation/src/config/index.ts
@@ -10,7 +10,7 @@ Decimal.set({
 })
 
 const constants = {
-  DB_VERSION: '0083-join_community_federated_communities',
+  DB_VERSION: '0084-introduce_humhub_registration',
   DECAY_START_TIME: new Date('2021-05-13 17:46:31-0000'), // GMT+0
   LOG4JS_CONFIG: 'log4js-config.json',
   // default log level on production should be info
diff --git a/frontend/.env.dist b/frontend/.env.dist
index f680d9a50..f11a70873 100644
--- a/frontend/.env.dist
+++ b/frontend/.env.dist
@@ -23,3 +23,4 @@ META_KEYWORDS_EN="Basic Income, Currency, Gratitude, Gift Economy, Natural Econo
 META_AUTHOR="Bernd Hückstädt - Gradido-Akademie"
 
 GMS_ACTIVE=false
+HUMHUB_ACTIVE=false
diff --git a/frontend/.env.template b/frontend/.env.template
index c121545da..40d0e7ee1 100644
--- a/frontend/.env.template
+++ b/frontend/.env.template
@@ -25,4 +25,5 @@ META_KEYWORDS_DE=$META_KEYWORDS_DE
 META_KEYWORDS_EN=$META_KEYWORDS_EN
 META_AUTHOR=$META_AUTHOR
 
-GMS_ACTIVE=$GMS_ACTIVE
\ No newline at end of file
+GMS_ACTIVE=$GMS_ACTIVE
+HUMHUB_ACTIVE=$HUMHUB_ACTIVE
\ No newline at end of file
diff --git a/frontend/public/img/loupe.png b/frontend/public/img/loupe.png
new file mode 100644
index 000000000..ab289e4ad
Binary files /dev/null and b/frontend/public/img/loupe.png differ
diff --git a/frontend/src/components/Menu/Sidebar.spec.js b/frontend/src/components/Menu/Sidebar.spec.js
index 23c855557..77a525f3b 100644
--- a/frontend/src/components/Menu/Sidebar.spec.js
+++ b/frontend/src/components/Menu/Sidebar.spec.js
@@ -34,7 +34,7 @@ describe('Sidebar', () => {
 
     describe('the genaral section', () => {
       it('has six nav-items', () => {
-        expect(wrapper.findAll('ul').at(0).findAll('.nav-item')).toHaveLength(6)
+        expect(wrapper.findAll('ul').at(0).findAll('.nav-item')).toHaveLength(7)
       })
 
       it('has nav-item "navigation.overview" in navbar', () => {
@@ -60,6 +60,10 @@ describe('Sidebar', () => {
       it('has nav-item "navigation.info" in navbar', () => {
         expect(wrapper.findAll('.nav-item').at(5).text()).toContain('navigation.info')
       })
+
+      it('has nav-item "usersearch" in navbar', () => {
+        expect(wrapper.findAll('.nav-item').at(6).text()).toContain('navigation.usersearch')
+      })
     })
 
     describe('the specific section', () => {
diff --git a/frontend/src/components/Menu/Sidebar.vue b/frontend/src/components/Menu/Sidebar.vue
index 1b18acc17..227275786 100644
--- a/frontend/src/components/Menu/Sidebar.vue
+++ b/frontend/src/components/Menu/Sidebar.vue
@@ -28,10 +28,14 @@
             <b-icon icon="layers" aria-hidden="true"></b-icon>
             <span class="ml-2">{{ $t('GDT') }}</span>
           </b-nav-item>
-          <b-nav-item to="/information" active-class="activeRoute">
+          <b-nav-item to="/information" class="mb-3" active-class="activeRoute">
             <b-img src="/img/svg/info.svg" height="20" class="svg-icon" />
             <span class="ml-2">{{ $t('navigation.info') }}</span>
           </b-nav-item>
+          <b-nav-item to="/usersearch" active-class="activeRoute">
+            <b-img src="/img/loupe.png" height="20" />
+            <span class="ml-2">{{ $t('navigation.usersearch') }}</span>
+          </b-nav-item>
         </b-nav>
         <hr class="m-3" />
         <b-nav vertical class="w-100">
diff --git a/frontend/src/components/UserSettings/UserGMSSwitch.vue b/frontend/src/components/UserSettings/UserGMSSwitch.vue
deleted file mode 100644
index 355beeff2..000000000
--- a/frontend/src/components/UserSettings/UserGMSSwitch.vue
+++ /dev/null
@@ -1,45 +0,0 @@
-<template>
-  <div class="form-user-gms-switch">
-    <b-form-checkbox
-      test="BFormCheckbox"
-      v-model="gmsAllowed"
-      name="check-button"
-      switch
-      @change="onChange"
-    ></b-form-checkbox>
-  </div>
-</template>
-<script>
-import { updateUserInfos } from '@/graphql/mutations'
-
-export default {
-  name: 'UserGMSSwitch',
-  data() {
-    return {
-      gmsAllowed: this.$store.state.gmsAllowed,
-    }
-  },
-  methods: {
-    async onChange() {
-      this.$apollo
-        .mutate({
-          mutation: updateUserInfos,
-          variables: {
-            gmsAllowed: this.gmsAllowed,
-          },
-        })
-        .then(() => {
-          this.$store.commit('gmsAllowed', this.gmsAllowed)
-          this.$emit('gmsAllowed', this.gmsAllowed)
-          this.toastSuccess(
-            this.gmsAllowed ? this.$t('settings.GMS.enabled') : this.$t('settings.GMS.disabled'),
-          )
-        })
-        .catch((error) => {
-          this.gmsAllowed = this.$store.state.gmsAllowed
-          this.toastError(error.message)
-        })
-    },
-  },
-}
-</script>
diff --git a/frontend/src/components/UserSettings/UserGMSNamingFormat.spec.js b/frontend/src/components/UserSettings/UserNamingFormat.spec.js
similarity index 79%
rename from frontend/src/components/UserSettings/UserGMSNamingFormat.spec.js
rename to frontend/src/components/UserSettings/UserNamingFormat.spec.js
index 3dbbfdb2c..f07f5e3f2 100644
--- a/frontend/src/components/UserSettings/UserGMSNamingFormat.spec.js
+++ b/frontend/src/components/UserSettings/UserNamingFormat.spec.js
@@ -1,5 +1,5 @@
 import { mount } from '@vue/test-utils'
-import UserGMSNamingFormat from './UserGMSNamingFormat.vue'
+import UserNamingFormat from './UserNamingFormat.vue'
 import { toastErrorSpy } from '@test/testSetup'
 
 const mockAPIcall = jest.fn()
@@ -8,10 +8,10 @@ const storeCommitMock = jest.fn()
 
 const localVue = global.localVue
 
-describe('UserGMSNamingFormat', () => {
+describe('UserNamingFormat', () => {
   let wrapper
   beforeEach(() => {
-    wrapper = mount(UserGMSNamingFormat, {
+    wrapper = mount(UserNamingFormat, {
       mocks: {
         $t: (key) => key, // Mocking the translation function
         $store: {
@@ -27,6 +27,9 @@ describe('UserGMSNamingFormat', () => {
       localVue,
       propsData: {
         selectedOption: 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS',
+        initialValue: 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS',
+        attrName: 'gmsPublishName',
+        successMessage: 'success message',
       },
     })
   })
@@ -53,16 +56,16 @@ describe('UserGMSNamingFormat', () => {
     const dropdownItem = wrapper.findAll('.dropdown-item').at(3) // Click the fourth item
     await dropdownItem.trigger('click')
 
-    expect(wrapper.emitted().gmsPublishName).toBeTruthy()
-    expect(wrapper.emitted().gmsPublishName.length).toBe(1)
-    expect(wrapper.emitted().gmsPublishName[0]).toEqual(['GMS_PUBLISH_NAME_FIRST_INITIAL'])
+    expect(wrapper.emitted().valueChanged).toBeTruthy()
+    expect(wrapper.emitted().valueChanged.length).toBe(1)
+    expect(wrapper.emitted().valueChanged[0]).toEqual(['GMS_PUBLISH_NAME_FIRST_INITIAL'])
   })
 
   it('does not update when clicking on already selected option', async () => {
     const dropdownItem = wrapper.findAll('.dropdown-item').at(0) // Click the first item (which is already selected)
     await dropdownItem.trigger('click')
 
-    expect(wrapper.emitted().gmsPublishName).toBeFalsy()
+    expect(wrapper.emitted().valueChanged).toBeFalsy()
   })
 
   describe('update with error', () => {
diff --git a/frontend/src/components/UserSettings/UserGMSNamingFormat.vue b/frontend/src/components/UserSettings/UserNamingFormat.vue
similarity index 77%
rename from frontend/src/components/UserSettings/UserGMSNamingFormat.vue
rename to frontend/src/components/UserSettings/UserNamingFormat.vue
index 29b4cd384..510541219 100644
--- a/frontend/src/components/UserSettings/UserGMSNamingFormat.vue
+++ b/frontend/src/components/UserSettings/UserNamingFormat.vue
@@ -1,5 +1,5 @@
 <template>
-  <div class="user-gms-naming-format">
+  <div class="user-naming-format">
     <b-dropdown v-model="selectedOption">
       <template slot="button-content">{{ selectedOptionLabel }}</template>
       <b-dropdown-item
@@ -18,10 +18,15 @@
 import { updateUserInfos } from '@/graphql/mutations'
 
 export default {
-  name: 'UserGMSNamingFormat',
+  name: 'UserNamingFormat',
+  props: {
+    initialValue: { type: String, default: 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS' },
+    attrName: { type: String },
+    successMessage: { type: String },
+  },
   data() {
     return {
-      selectedOption: this.$store.state.gmsPublishName ?? 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS',
+      selectedOption: this.initialValue,
       dropdownOptions: [
         {
           label: this.$t('settings.GMS.publish-name.alias-or-initials'),
@@ -62,16 +67,16 @@ export default {
         return
       }
       try {
+        const variables = []
+        variables[this.attrName] = option.value
         await this.$apollo.mutate({
           mutation: updateUserInfos,
-          variables: {
-            gmsPublishName: option.value,
-          },
+          variables,
         })
-        this.toastSuccess(this.$t('settings.GMS.publish-name.updated'))
+        this.toastSuccess(this.successMessage)
         this.selectedOption = option.value
-        this.$store.commit('gmsPublishName', option.value)
-        this.$emit('gmsPublishName', option.value)
+        this.$store.commit(this.attrName, option.value)
+        this.$emit('valueChanged', option.value)
       } catch (error) {
         this.toastError(error.message)
       }
@@ -80,8 +85,8 @@ export default {
 }
 </script>
 <style>
-.user-gms-naming-format > .dropdown,
-.user-gms-naming-format > .dropdown > .dropdown-toggle > ul.dropdown-menu {
+.user-naming-format > .dropdown,
+.user-naming-format > .dropdown > .dropdown-toggle > ul.dropdown-menu {
   width: 100%;
 }
 </style>
diff --git a/frontend/src/components/UserSettings/UserSettingsSwitch.vue b/frontend/src/components/UserSettings/UserSettingsSwitch.vue
new file mode 100644
index 000000000..8e819cba8
--- /dev/null
+++ b/frontend/src/components/UserSettings/UserSettingsSwitch.vue
@@ -0,0 +1,50 @@
+<template>
+  <div class="form-user-switch">
+    <b-form-checkbox
+      test="BFormCheckbox"
+      v-model="value"
+      name="check-button"
+      switch
+      @change="onChange"
+    ></b-form-checkbox>
+  </div>
+</template>
+<script>
+import { updateUserInfos } from '@/graphql/mutations'
+
+export default {
+  name: 'UserSettingsSwitch',
+  props: {
+    initialValue: { type: Boolean, default: false },
+    attrName: { type: String },
+    enabledText: { type: String },
+    disabledText: { type: String },
+  },
+  data() {
+    return {
+      value: this.initialValue,
+    }
+  },
+  methods: {
+    async onChange() {
+      const variables = []
+      variables[this.attrName] = this.value
+
+      this.$apollo
+        .mutate({
+          mutation: updateUserInfos,
+          variables,
+        })
+        .then(() => {
+          this.$store.commit(this.attrName, this.value)
+          this.$emit('valueChanged', this.value)
+          this.toastSuccess(this.value ? this.enabledText : this.disabledText)
+        })
+        .catch((error) => {
+          this.value = this.initialValue
+          this.toastError(error.message)
+        })
+    },
+  },
+}
+</script>
diff --git a/frontend/src/config/index.js b/frontend/src/config/index.js
index 1ead8ecf0..d96b434be 100644
--- a/frontend/src/config/index.js
+++ b/frontend/src/config/index.js
@@ -22,6 +22,7 @@ const version = {
 
 const features = {
   GMS_ACTIVE: process.env.GMS_ACTIVE ?? false,
+  HUMHUB_ACTIVE: process.env.HUMHUB_ACTIVE ?? false,
 }
 
 const environment = {
diff --git a/frontend/src/graphql/mutations.js b/frontend/src/graphql/mutations.js
index 8d28bbff6..ab78ca03b 100644
--- a/frontend/src/graphql/mutations.js
+++ b/frontend/src/graphql/mutations.js
@@ -35,7 +35,9 @@ export const updateUserInfos = gql`
     $hideAmountGDD: Boolean
     $hideAmountGDT: Boolean
     $gmsAllowed: Boolean
+    $humhubAllowed: Boolean
     $gmsPublishName: GmsPublishNameType
+    $humhubPublishName: GmsPublishNameType
     $gmsLocation: Location
     $gmsPublishLocation: GmsPublishLocationType
   ) {
@@ -49,7 +51,9 @@ export const updateUserInfos = gql`
       hideAmountGDD: $hideAmountGDD
       hideAmountGDT: $hideAmountGDT
       gmsAllowed: $gmsAllowed
+      humhubAllowed: $humhubAllowed
       gmsPublishName: $gmsPublishName
+      humhubPublishName: $humhubPublishName
       gmsLocation: $gmsLocation
       gmsPublishLocation: $gmsPublishLocation
     )
@@ -173,7 +177,9 @@ export const login = gql`
         newsletterState
       }
       gmsAllowed
+      humhubAllowed
       gmsPublishName
+      humhubPublishName
       gmsPublishLocation
       hasElopage
       publisherId
diff --git a/frontend/src/graphql/queries.js b/frontend/src/graphql/queries.js
index 9f961e402..696963b78 100644
--- a/frontend/src/graphql/queries.js
+++ b/frontend/src/graphql/queries.js
@@ -19,6 +19,14 @@ export const verifyLogin = gql`
     }
   }
 `
+export const authenticateGmsUserSearch = gql`
+  query {
+    authenticateGmsUserSearch {
+      url
+      token
+    }
+  }
+`
 
 export const transactionsQuery = gql`
   query($currentPage: Int = 1, $pageSize: Int = 25, $order: Order = DESC) {
diff --git a/frontend/src/locales/de.json b/frontend/src/locales/de.json
index 1c37d5e24..df59f05b2 100644
--- a/frontend/src/locales/de.json
+++ b/frontend/src/locales/de.json
@@ -9,6 +9,7 @@
   "GDD": "GDD",
   "GDT": "GDT",
   "GMS": "Gradido Karte",
+  "Humhub": "Gradido Community",
   "PersonalDetails": "Persönliche Angaben",
   "advanced-calculation": "Vorausberechnung",
   "asterisks": "****",
@@ -268,7 +269,8 @@
     "send": "Senden",
     "settings": "Einstellung",
     "support": "Support",
-    "transactions": "Transaktionen"
+    "transactions": "Transaktionen",
+    "usersearch": "Nutzersuche"
   },
   "openHours": "Offene Stunden",
   "pageTitle": {
@@ -278,7 +280,8 @@
     "overview": "Willkommen {name}",
     "send": "Sende Gradidos",
     "settings": "Einstellungen",
-    "transactions": "Deine Transaktionen"
+    "transactions": "Deine Transaktionen",
+    "usersearch": "Geografische Nutzersuche"
   },
   "qrCode": "QR Code",
   "send_gdd": "GDD versenden",
@@ -324,6 +327,16 @@
     },
     "hideAmountGDD": "Dein GDD Betrag ist versteckt.",
     "hideAmountGDT": "Dein GDT Betrag ist versteckt.",
+    "humhub": {
+      "disabled": "Daten werden nicht in die Gradido Community exportiert",
+      "enabled": "Daten werden in die Gradido Community exportiert",
+      "export-consequences": "In der Gradido Community können dich alle Benutzer mit deinem Vor- und Nachnamen finden.",
+      "naming-format": "Namensformat in der Gradido Community",
+      "publish-name": {
+        "updated": "Namensformat für die Gradido Community aktualisiert."
+      },
+      "switch": "Erlaubnis Daten in die Gradido Community zu exportieren."
+    },
     "info": "Transaktionen können nun per Benutzername oder E-Mail-Adresse getätigt werden.",
     "language": {
       "changeLanguage": "Sprache ändern",
@@ -411,6 +424,11 @@
   "transaction-link": {
     "send_you": "sendet dir"
   },
+  "usersearch": {
+    "headline": "Geografische Nutzersuche",
+    "text": "Ganz gleich zu welcher Community du gehörst, mit dem Geo Matching System findest du Mitglieder aller Communities auf einer Landkarte. Du kannst nach  Angeboten und Bedürfnissen filtern und dir die Nutzer anzeigen lassen, die zu Dir passen.\n\nMit dem Button wird ein neues Browser-Fenster geöffnet, in dem dir die Nutzer in deinem Umfeld auf einer Karte angezeigt werden.",
+    "button": "Starte die Nutzersuche..."
+  },
   "via_link": "über einen Link",
   "welcome": "Willkommen in der Gemeinschaft"
 }
diff --git a/frontend/src/locales/en.json b/frontend/src/locales/en.json
index 7c607ecbb..0377a3eec 100644
--- a/frontend/src/locales/en.json
+++ b/frontend/src/locales/en.json
@@ -9,6 +9,7 @@
   "GDD": "GDD",
   "GDT": "GDT",
   "GMS": "Gradido Map",
+  "Humhub": "Gradido Community",
   "PersonalDetails": "Personal details",
   "advanced-calculation": "Advanced calculation",
   "asterisks": "****",
@@ -268,7 +269,8 @@
     "send": "Send",
     "settings": "Settings",
     "support": "Support",
-    "transactions": "Transactions"
+    "transactions": "Transactions",
+    "usersearch": "Geographical User Search"
   },
   "openHours": "Open Hours",
   "pageTitle": {
@@ -278,7 +280,8 @@
     "overview": "Welcome {name}",
     "send": "Send Gradidos",
     "settings": "Settings",
-    "transactions": "Your transactions"
+    "transactions": "Your transactions",
+    "usersearch": "Geographical User Search"
   },
   "qrCode": "QR Code",
   "send_gdd": "Send GDD",
@@ -324,6 +327,16 @@
     },
     "hideAmountGDD": "Your GDD amount is hidden.",
     "hideAmountGDT": "Your GDT amount is hidden.",
+    "humhub": {
+      "disabled": "Data not exported into the Gradido Community",
+      "enabled": "Data exported into the Gradido Community",
+      "export-consequences": "In the Gradido Community, all users can find you by your first and last name.",
+      "naming-format": "Format of name in the Gradido Community",
+      "publish-name": {
+        "updated": "Format of name for the Gradido Community updated."
+      },
+      "switch": "Allow data export into the Gradido Community."
+    },
     "info": "Transactions can now be made by username or email address.",
     "language": {
       "changeLanguage": "Change language",
@@ -411,6 +424,11 @@
   "transaction-link": {
     "send_you": "wants to send you"
   },
+  "usersearch": {
+    "headline": "Geographical User Search",
+    "text": "No matter which community you belong to, with the Geo Matching System you can find members of all communities on a map. You can filter according to offers and needs and display the users that match you.\n\nThe button opens a new browser window in which the users in your area are displayed on a map.",
+    "button": "Start user search... "
+  },
   "via_link": "via Link",
   "welcome": "Welcome to the community"
 }
diff --git a/frontend/src/locales/es.json b/frontend/src/locales/es.json
index 6e52fd9a1..bc5479029 100644
--- a/frontend/src/locales/es.json
+++ b/frontend/src/locales/es.json
@@ -242,7 +242,19 @@
     "profile": "Mi Perfil",
     "send": "Enviar",
     "support": "Soporte",
-    "transactions": "Transacciones"
+    "transactions": "Transacciones",
+    "usersearch": "Buscar usuarios"
+  },
+  "openHours": "Open Hours",
+  "pageTitle": {
+    "community": "Create Gradido",
+    "gdt": "Tu GDT Transacciones",
+    "information": "{community}",
+    "overview": "Welcome {name}",
+    "send": "Enviar Gradidos",
+    "settings": "Soporte",
+    "transactions": "Tu Transacciones",
+    "usersearch": "Búsqueda geográfica de usuarios"
   },
   "qrCode": "Código QR",
   "send_gdd": "Enviar GDD",
@@ -334,6 +346,11 @@
   "transaction-link": {
     "send_you": "te envía"
   },
+  "usersearch": {
+    "headline": "Búsqueda geográfica de usuarios",
+    "text": "No importa a qué comunidad pertenezcas, con el Geo Matching System puedes encontrar miembros de todas las comunidades en un mapa. Puedes filtrar según ofertas y requisitos y visualizar los usuarios que coinciden con tu perfil.\n\nEl botón abre una nueva ventana del navegador en la que se muestran en un mapa los usuarios de tu zona.",
+    "button": "Iniciar la búsqueda de usuarios..."
+  },
   "via_link": "atraves de un enlace",
   "welcome": "Bienvenido a la comunidad."
 }
diff --git a/frontend/src/locales/fr.json b/frontend/src/locales/fr.json
index 94bac00a6..999060f21 100644
--- a/frontend/src/locales/fr.json
+++ b/frontend/src/locales/fr.json
@@ -250,7 +250,8 @@
     "send": "Envoyer",
     "settings": "Configuration",
     "support": "Aide",
-    "transactions": "Transactions"
+    "transactions": "Transactions",
+    "usersearch": "Recherche d'utilisateurs"
   },
   "openHours": "Heures ouverte",
   "pageTitle": {
@@ -260,7 +261,8 @@
     "overview": "Bienvenue {name}",
     "send": "Envoyé Gradidos",
     "settings": "Configuration",
-    "transactions": "Vos transactions"
+    "transactions": "Vos transactions",
+    "usersearch": "Recherche géographique d'utilisateurs"
   },
   "qrCode": "QR Code",
   "send_gdd": "Envoyer GDD",
@@ -352,6 +354,11 @@
   "transaction-link": {
     "send_you": "veut vous envoyer"
   },
+  "usersearch": {
+    "headline": "Recherche géographique d'utilisateurs",
+    "text": "Quelle que soit la communauté à laquelle tu appartiens, le système de géo-matching te permet de trouver des membres de toutes les communautés sur une carte géographique. Tu peux filtrer selon les offres et les besoins et afficher les utilisateurs qui te correspondent.\n\nEn cliquant sur le bouton, une nouvelle fenêtre de navigateur s'ouvre et t'affiche les utilisateurs de ton entourage sur une carte.",
+    "button": "Commence la recherche d'utilisateurs..."
+  },
   "via_link": "par lien",
   "welcome": "Bienvenu dans la communauté"
 }
diff --git a/frontend/src/locales/nl.json b/frontend/src/locales/nl.json
index a1f612f39..2e50f2968 100644
--- a/frontend/src/locales/nl.json
+++ b/frontend/src/locales/nl.json
@@ -242,7 +242,19 @@
     "profile": "Mijn profiel",
     "send": "Sturen",
     "support": "Support",
-    "transactions": "Transacties"
+    "transactions": "Transacties",
+    "usersearch": "Gebruiker zoeken"
+  },
+  "openHours": "Open Hours",
+  "pageTitle": {
+    "community": "Create Gradido",
+    "gdt": "Your GDT transactions",
+    "information": "{community}",
+    "overview": "Welcome {name}",
+    "send": "Send Gradidos",
+    "settings": "Settings",
+    "transactions": "Your transactions",
+    "usersearch": "Geografisch zoeken naar gebruikers"
   },
   "qrCode": "QR Code",
   "send_gdd": "GDD sturen",
@@ -334,6 +346,11 @@
   "transaction-link": {
     "send_you": "stuurt jou"
   },
+  "usersearch": {
+    "headline": "Geografisch zoeken naar gebruikers",
+    "text": "Het maakt niet uit tot welke community je behoort, met het Geo Matching System kun je leden van alle communities vinden op een kaart. Je kunt filteren op aanbiedingen en vereisten en de gebruikers weergeven die aan je profiel voldoen.\n\nDe knop opent een nieuw browservenster waarin de gebruikers in je omgeving op een kaart worden weergegeven.",
+    "button": "Start het zoeken naar gebruikers..."
+  },
   "via_link": "via een link",
   "welcome": "Welkom in de gemeenschap"
 }
diff --git a/frontend/src/pages/Settings.vue b/frontend/src/pages/Settings.vue
index c74af6679..1fb84318e 100644
--- a/frontend/src/pages/Settings.vue
+++ b/frontend/src/pages/Settings.vue
@@ -79,44 +79,91 @@
           </b-col>
         </b-row>
       </b-tab>
-      <div v-if="isGMS">
+      <div v-if="isExternService">
         <b-tab :title="$t('ExternServices')">
           <div class="h2">{{ $t('ExternServices') }}</div>
-          <div class="h3">{{ $t('GMS') }}</div>
-          <b-row class="mb-3">
-            <b-col cols="12" md="6" lg="6">
-              {{ $t('settings.GMS.switch') }}
-              <div class="text-small">
-                {{ gmsAllowed ? $t('settings.GMS.enabled') : $t('settings.GMS.disabled') }}
-              </div>
-            </b-col>
-            <b-col cols="12" md="6" lg="6" class="text-right">
-              <user-g-m-s-switch @gmsAllowed="gmsStateSwitch" />
-            </b-col>
-          </b-row>
-          <div v-if="gmsAllowed">
-            <b-row class="mb-4">
+          <div v-if="isGMS">
+            <div class="h3">{{ $t('GMS') }}</div>
+            <b-row class="mb-3">
               <b-col cols="12" md="6" lg="6">
-                {{ $t('settings.GMS.naming-format') }}
+                {{ $t('settings.GMS.switch') }}
+                <div class="text-small">
+                  {{ gmsAllowed ? $t('settings.GMS.enabled') : $t('settings.GMS.disabled') }}
+                </div>
               </b-col>
-              <b-col cols="12" md="6" lg="6">
-                <user-g-m-s-naming-format />
+              <b-col cols="12" md="6" lg="6" class="text-right">
+                <user-settings-switch
+                  @valueChanged="gmsStateSwitch"
+                  :initialValue="$store.state.gmsAllowed"
+                  :attrName="'gmsAllowed'"
+                  :enabledText="$t('settings.GMS.enabled')"
+                  :disabledText="$t('settings.GMS.disabled')"
+                />
               </b-col>
             </b-row>
-            <b-row class="mb-4">
+            <div v-if="gmsAllowed">
+              <b-row class="mb-4">
+                <b-col cols="12" md="6" lg="6">
+                  {{ $t('settings.GMS.naming-format') }}
+                </b-col>
+                <b-col cols="12" md="6" lg="6">
+                  <user-naming-format
+                    :initialValue="$store.state.gmsPublishName"
+                    :attrName="'gmsPublishName'"
+                    :successMessage="$t('settings.GMS.publish-name.updated')"
+                  />
+                </b-col>
+              </b-row>
+              <b-row class="mb-4">
+                <b-col cols="12" md="6" lg="6">
+                  {{ $t('settings.GMS.location-format') }}
+                </b-col>
+                <b-col cols="12" md="6" lg="6">
+                  <user-g-m-s-location-format />
+                </b-col>
+              </b-row>
+              <b-row class="mb-5">
+                <b-col cols="12" md="6" lg="6">
+                  {{ $t('settings.GMS.location.label') }}
+                </b-col>
+                <b-col cols="12" md="6" lg="6">
+                  <user-g-m-s-location />
+                </b-col>
+              </b-row>
+            </div>
+          </div>
+          <div v-if="isHumhub">
+            <div class="h3">{{ $t('Humhub') }}</div>
+            {{ $t('settings.humhub.export-consequences') }}
+            <b-row class="mb-3">
               <b-col cols="12" md="6" lg="6">
-                {{ $t('settings.GMS.location-format') }}
+                {{ $t('settings.humhub.switch') }}
+                <div class="text-small">
+                  {{
+                    humhubAllowed ? $t('settings.humhub.enabled') : $t('settings.humhub.disabled')
+                  }}
+                </div>
               </b-col>
-              <b-col cols="12" md="6" lg="6">
-                <user-g-m-s-location-format />
+              <b-col cols="12" md="6" lg="6" class="text-right">
+                <user-settings-switch
+                  @valueChanged="humhubStateSwitch"
+                  :initialValue="$store.state.humhubAllowed"
+                  :attrName="'humhubAllowed'"
+                  :enabledText="$t('settings.humhub.enabled')"
+                  :disabledText="$t('settings.humhub.disabled')"
+                />
               </b-col>
             </b-row>
-            <b-row class="mb-5">
+            <b-row v-if="humhubAllowed" class="mb-4">
               <b-col cols="12" md="6" lg="6">
-                {{ $t('settings.GMS.location.label') }}
+                {{ $t('settings.humhub.naming-format') }}
               </b-col>
               <b-col cols="12" md="6" lg="6">
-                <user-g-m-s-location />
+                <user-naming-format
+                  :initialValue="$store.state.humhubPublishName"
+                  :attrName="'humhubPublishName'"
+                  :successMessage="$t('settings.humhub.publish-name.updated')"
+                />
               </b-col>
             </b-row>
           </div>
@@ -133,28 +180,28 @@
   </div>
 </template>
 <script>
-import UserGMSSwitch from '@/components/UserSettings/UserGMSSwitch'
-import UserGMSNamingFormat from '@/components/UserSettings/UserGMSNamingFormat'
+import UserNamingFormat from '@/components/UserSettings/UserNamingFormat'
 import UserGMSLocationFormat from '@/components/UserSettings/UserGMSLocationFormat'
 import UserGMSLocation from '@/components/UserSettings/UserGMSLocation'
 import UserName from '@/components/UserSettings/UserName.vue'
 import UserPassword from '@/components/UserSettings/UserPassword'
 import UserLanguage from '@/components/LanguageSwitch2.vue'
 import UserNewsletter from '@/components/UserSettings/UserNewsletter.vue'
+import UserSettingsSwitch from '../components/UserSettings/UserSettingsSwitch.vue'
 import { updateUserInfos } from '@/graphql/mutations'
 import CONFIG from '../config'
 
 export default {
   name: 'Profile',
   components: {
-    UserGMSSwitch,
-    UserGMSNamingFormat,
+    UserNamingFormat,
     UserGMSLocationFormat,
     UserGMSLocation,
     UserName,
     UserPassword,
     UserLanguage,
     UserNewsletter,
+    UserSettingsSwitch,
   },
   props: {
     balance: { type: Number, default: 0 },
@@ -163,7 +210,15 @@ export default {
 
   data() {
     const { state } = this.$store
-    const { darkMode, firstName, lastName, email, newsletterState, gmsAllowed } = state
+    const {
+      darkMode,
+      firstName,
+      lastName,
+      email,
+      newsletterState,
+      gmsAllowed,
+      humhubAllowed,
+    } = state
 
     return {
       darkMode,
@@ -173,6 +228,7 @@ export default {
       email,
       newsletterState,
       gmsAllowed,
+      humhubAllowed,
       mutation: '',
       variables: {},
     }
@@ -183,9 +239,15 @@ export default {
       const { firstName, lastName } = this.$store.state
       return firstName === this.firstName && lastName === this.lastName
     },
+    isExternService() {
+      return this.isGMS || this.isHumhub
+    },
     isGMS() {
       return CONFIG.GMS_ACTIVE
     },
+    isHumhub() {
+      return CONFIG.HUMHUB_ACTIVE
+    },
   },
   // TODO: watch: {
   //   darkMode(val) {
@@ -214,6 +276,9 @@ export default {
     gmsStateSwitch(eventData) {
       this.gmsAllowed = eventData
     },
+    humhubStateSwitch(eventData) {
+      this.humhubAllowed = eventData
+    },
   },
 }
 </script>
diff --git a/frontend/src/pages/UserSearch.spec.js b/frontend/src/pages/UserSearch.spec.js
new file mode 100644
index 000000000..7a991ac0f
--- /dev/null
+++ b/frontend/src/pages/UserSearch.spec.js
@@ -0,0 +1,73 @@
+import { mount } from '@vue/test-utils'
+import UserSearch from './UserSearch'
+import { toastErrorSpy } from '../../test/testSetup'
+import { authenticateGmsUserSearch } from '@/graphql/queries'
+
+const localVue = global.localVue
+
+window.scrollTo = jest.fn()
+
+const apolloQueryMock = jest
+  .fn()
+  .mockResolvedValueOnce({
+    data: {
+      authenticateGmsUserSearch: {
+        gmsUri: 'http://localhost:8080/playground?not initialized',
+      },
+    },
+  })
+  .mockResolvedValue('default')
+
+describe('UserSearch', () => {
+  let wrapper
+
+  const mocks = {
+    $t: jest.fn((t) => t),
+    $n: jest.fn(),
+    $i18n: {
+      locale: 'en',
+    },
+    $apollo: {
+      query: apolloQueryMock,
+    },
+  }
+
+  const Wrapper = () => {
+    return mount(UserSearch, {
+      localVue,
+      mocks,
+    })
+  }
+
+  describe('mount', () => {
+    beforeEach(() => {
+      wrapper = Wrapper()
+    })
+
+    it('renders the usersearch page', () => {
+      expect(wrapper.find('div.usersearch').exists()).toBeTruthy()
+    })
+
+    it('calls authenticateGmsUserSearch', () => {
+      expect(apolloQueryMock).toBeCalledWith(
+        expect.objectContaining({
+          query: authenticateGmsUserSearch,
+        }),
+      )
+    })
+
+    describe('error apolloQueryMock', () => {
+      beforeEach(async () => {
+        jest.clearAllMocks()
+        apolloQueryMock.mockRejectedValue({
+          message: 'uups',
+        })
+        wrapper = Wrapper()
+      })
+
+      it('toasts an error message', () => {
+        expect(toastErrorSpy).toBeCalledWith('authenticateGmsUserSearch failed!')
+      })
+    })
+  })
+})
diff --git a/frontend/src/pages/UserSearch.vue b/frontend/src/pages/UserSearch.vue
new file mode 100644
index 000000000..070a96d7b
--- /dev/null
+++ b/frontend/src/pages/UserSearch.vue
@@ -0,0 +1,56 @@
+<template>
+  <div class="usersearch">
+    <b-container class="bg-white appBoxShadow gradido-border-radius p-4 mt--3">
+      <div class="h3">{{ $t('usersearch.headline') }}</div>
+      <div class="my-4 text-small">
+        <span
+          v-for="(line, lineNumber) of $t('usersearch.text').split('\n')"
+          v-bind:key="lineNumber"
+        >
+          {{ line }}
+          <br />
+        </span>
+      </div>
+      <b-row class="my-5">
+        <b-col cols="12">
+          <div class="text-lg-right">
+            <b-button variant="gradido" :href="this.gmsUri" target="_blank">
+              {{ $t('usersearch.button') }}
+            </b-button>
+          </div>
+        </b-col>
+      </b-row>
+    </b-container>
+  </div>
+</template>
+<script>
+import { authenticateGmsUserSearch } from '@/graphql/queries'
+export default {
+  name: 'UserSearch',
+  data() {
+    return {
+      gmsUri: 'not initialized',
+    }
+  },
+  methods: {
+    async authenticateGmsUserPlayground() {
+      this.$apollo
+        .query({
+          query: authenticateGmsUserSearch,
+        })
+        .then(async (result) => {
+          this.gmsUri =
+            result.data.authenticateGmsUserSearch.url +
+            '?accesstoken=' +
+            result.data.authenticateGmsUserSearch.token
+        })
+        .catch(() => {
+          this.toastError('authenticateGmsUserSearch failed!')
+        })
+    },
+  },
+  created() {
+    this.authenticateGmsUserPlayground()
+  },
+}
+</script>
diff --git a/frontend/src/routes/router.test.js b/frontend/src/routes/router.test.js
index 6d7e7b2a0..af6b1c431 100644
--- a/frontend/src/routes/router.test.js
+++ b/frontend/src/routes/router.test.js
@@ -49,8 +49,8 @@ describe('router', () => {
         expect(routes.find((r) => r.path === '/').redirect()).toEqual({ path: '/login' })
       })
 
-      it('has 19 routes defined', () => {
-        expect(routes).toHaveLength(19)
+      it('has 20 routes defined', () => {
+        expect(routes).toHaveLength(20)
       })
 
       describe('overview', () => {
@@ -142,6 +142,17 @@ describe('router', () => {
         })
       })
 
+      describe('usersearch', () => {
+        it('requires authorization', () => {
+          expect(routes.find((r) => r.path === '/usersearch').meta.requiresAuth).toBeTruthy()
+        })
+
+        it('loads the "UserSearch" page', async () => {
+          const component = await routes.find((r) => r.path === '/usersearch').component()
+          expect(component.default.name).toBe('UserSearch')
+        })
+      })
+
       describe('gdt', () => {
         it('requires authorization', () => {
           expect(routes.find((r) => r.path === '/gdt').meta.requiresAuth).toBeTruthy()
diff --git a/frontend/src/routes/routes.js b/frontend/src/routes/routes.js
index 869151618..d8f85b858 100755
--- a/frontend/src/routes/routes.js
+++ b/frontend/src/routes/routes.js
@@ -80,6 +80,14 @@ const routes = [
       pageTitle: 'information',
     },
   },
+  {
+    path: '/usersearch',
+    component: () => import('@/pages/UserSearch'),
+    meta: {
+      requiresAuth: true,
+      pageTitle: 'usersearch',
+    },
+  },
   // {
   //   path: '/storys',
   //   component: () => import('@/pages/TopStorys'),
diff --git a/frontend/src/store/store.js b/frontend/src/store/store.js
index e9eab2dd7..e574aa008 100644
--- a/frontend/src/store/store.js
+++ b/frontend/src/store/store.js
@@ -38,9 +38,15 @@ export const mutations = {
   gmsAllowed: (state, gmsAllowed) => {
     state.gmsAllowed = gmsAllowed
   },
+  humhubAllowed: (state, humhubAllowed) => {
+    state.humhubAllowed = humhubAllowed
+  },
   gmsPublishName: (state, gmsPublishName) => {
     state.gmsPublishName = gmsPublishName
   },
+  humhubPublishName: (state, humhubPublishName) => {
+    state.humhubPublishName = humhubPublishName
+  },
   gmsPublishLocation: (state, gmsPublishLocation) => {
     state.gmsPublishLocation = gmsPublishLocation
   },
@@ -81,7 +87,9 @@ export const actions = {
     commit('lastName', data.lastName)
     commit('newsletterState', data.klickTipp.newsletterState)
     commit('gmsAllowed', data.gmsAllowed)
+    commit('humhubAllowed', data.humhubAllowed)
     commit('gmsPublishName', data.gmsPublishName)
+    commit('humhubPublishName', data.humhubPublishName)
     commit('gmsPublishLocation', data.gmsPublishLocation)
     commit('hasElopage', data.hasElopage)
     commit('publisherId', data.publisherId)
@@ -98,7 +106,9 @@ export const actions = {
     commit('lastName', '')
     commit('newsletterState', null)
     commit('gmsAllowed', null)
+    commit('humhubAllowed', null)
     commit('gmsPublishName', null)
+    commit('humhubPublishName', null)
     commit('gmsPublishLocation', null)
     commit('hasElopage', false)
     commit('publisherId', null)
@@ -133,7 +143,9 @@ try {
       roles: [],
       newsletterState: null,
       gmsAllowed: null,
+      humhubAllowed: null,
       gmsPublishName: null,
+      humhubPublishName: null,
       gmsPublishLocation: null,
       hasElopage: false,
       publisherId: null,
diff --git a/frontend/src/store/store.test.js b/frontend/src/store/store.test.js
index 75ab308fd..6d06a3724 100644
--- a/frontend/src/store/store.test.js
+++ b/frontend/src/store/store.test.js
@@ -29,7 +29,9 @@ const {
   username,
   newsletterState,
   gmsAllowed,
+  humhubAllowed,
   gmsPublishName,
+  humhubPublishName,
   gmsPublishLocation,
   publisherId,
   roles,
@@ -133,6 +135,14 @@ describe('Vuex store', () => {
       })
     })
 
+    describe('humhubAllowed', () => {
+      it('sets the state of humhubAllowed', () => {
+        const state = { humhubAllowed: null }
+        humhubAllowed(state, true)
+        expect(state.humhubAllowed).toEqual(true)
+      })
+    })
+
     describe('gmsPublishName', () => {
       it('sets gmsPublishName', () => {
         const state = { gmsPublishName: null }
@@ -141,6 +151,14 @@ describe('Vuex store', () => {
       })
     })
 
+    describe('humhubPublishName', () => {
+      it('sets humhubPublishName', () => {
+        const state = { humhubPublishName: null }
+        humhubPublishName(state, 'GMS_PUBLISH_NAME_INITIALS')
+        expect(state.humhubPublishName).toEqual('GMS_PUBLISH_NAME_INITIALS')
+      })
+    })
+
     describe('gmsPublishLocation', () => {
       it('sets gmsPublishLocation', () => {
         const state = { gmsPublishLocation: null }
@@ -218,7 +236,9 @@ describe('Vuex store', () => {
           newsletterState: true,
         },
         gmsAllowed: true,
+        humhubAllowed: false,
         gmsPublishName: 'GMS_PUBLISH_NAME_FULL',
+        humhubPublishName: 'GMS_PUBLISH_NAME_FULL',
         gmsPublishLocation: 'GMS_LOCATION_TYPE_EXACT',
         hasElopage: false,
         publisherId: 1234,
@@ -227,9 +247,9 @@ describe('Vuex store', () => {
         hideAmountGDT: true,
       }
 
-      it('calls fifteen commits', () => {
+      it('calls seventeen commits', () => {
         login({ commit, state }, commitedData)
-        expect(commit).toHaveBeenCalledTimes(15)
+        expect(commit).toHaveBeenCalledTimes(17)
       })
 
       it('commits gradidoID', () => {
@@ -267,39 +287,49 @@ describe('Vuex store', () => {
         expect(commit).toHaveBeenNthCalledWith(7, 'gmsAllowed', true)
       })
 
+      it('commits humhubAllowed', () => {
+        login({ commit, state }, commitedData)
+        expect(commit).toHaveBeenNthCalledWith(8, 'humhubAllowed', false)
+      })
+
       it('commits gmsPublishName', () => {
         login({ commit, state }, commitedData)
-        expect(commit).toHaveBeenNthCalledWith(8, 'gmsPublishName', 'GMS_PUBLISH_NAME_FULL')
+        expect(commit).toHaveBeenNthCalledWith(9, 'gmsPublishName', 'GMS_PUBLISH_NAME_FULL')
+      })
+
+      it('commits humhubPublishName', () => {
+        login({ commit, state }, commitedData)
+        expect(commit).toHaveBeenNthCalledWith(10, 'humhubPublishName', 'GMS_PUBLISH_NAME_FULL')
       })
 
       it('commits gmsPublishLocation', () => {
         login({ commit, state }, commitedData)
-        expect(commit).toHaveBeenNthCalledWith(9, 'gmsPublishLocation', 'GMS_LOCATION_TYPE_EXACT')
+        expect(commit).toHaveBeenNthCalledWith(11, 'gmsPublishLocation', 'GMS_LOCATION_TYPE_EXACT')
       })
 
       it('commits hasElopage', () => {
         login({ commit, state }, commitedData)
-        expect(commit).toHaveBeenNthCalledWith(10, 'hasElopage', false)
+        expect(commit).toHaveBeenNthCalledWith(12, 'hasElopage', false)
       })
 
       it('commits publisherId', () => {
         login({ commit, state }, commitedData)
-        expect(commit).toHaveBeenNthCalledWith(11, 'publisherId', 1234)
+        expect(commit).toHaveBeenNthCalledWith(13, 'publisherId', 1234)
       })
 
       it('commits roles', () => {
         login({ commit, state }, commitedData)
-        expect(commit).toHaveBeenNthCalledWith(12, 'roles', ['admin'])
+        expect(commit).toHaveBeenNthCalledWith(14, 'roles', ['admin'])
       })
 
       it('commits hideAmountGDD', () => {
         login({ commit, state }, commitedData)
-        expect(commit).toHaveBeenNthCalledWith(13, 'hideAmountGDD', false)
+        expect(commit).toHaveBeenNthCalledWith(15, 'hideAmountGDD', false)
       })
 
       it('commits hideAmountGDT', () => {
         login({ commit, state }, commitedData)
-        expect(commit).toHaveBeenNthCalledWith(14, 'hideAmountGDT', true)
+        expect(commit).toHaveBeenNthCalledWith(16, 'hideAmountGDT', true)
       })
     })
 
@@ -307,9 +337,9 @@ describe('Vuex store', () => {
       const commit = jest.fn()
       const state = {}
 
-      it('calls seventeen commits', () => {
+      it('calls nineteen commits', () => {
         logout({ commit, state })
-        expect(commit).toHaveBeenCalledTimes(17)
+        expect(commit).toHaveBeenCalledTimes(19)
       })
 
       it('commits token', () => {
@@ -347,44 +377,54 @@ describe('Vuex store', () => {
         expect(commit).toHaveBeenNthCalledWith(7, 'gmsAllowed', null)
       })
 
+      it('commits humhubAllowed', () => {
+        logout({ commit, state })
+        expect(commit).toHaveBeenNthCalledWith(8, 'humhubAllowed', null)
+      })
+
       it('commits gmsPublishName', () => {
         logout({ commit, state })
-        expect(commit).toHaveBeenNthCalledWith(8, 'gmsPublishName', null)
+        expect(commit).toHaveBeenNthCalledWith(9, 'gmsPublishName', null)
+      })
+
+      it('commits humhubPublishName', () => {
+        logout({ commit, state })
+        expect(commit).toHaveBeenNthCalledWith(10, 'humhubPublishName', null)
       })
 
       it('commits gmsPublishLocation', () => {
         logout({ commit, state })
-        expect(commit).toHaveBeenNthCalledWith(9, 'gmsPublishLocation', null)
+        expect(commit).toHaveBeenNthCalledWith(11, 'gmsPublishLocation', null)
       })
 
       it('commits hasElopage', () => {
         logout({ commit, state })
-        expect(commit).toHaveBeenNthCalledWith(10, 'hasElopage', false)
+        expect(commit).toHaveBeenNthCalledWith(12, 'hasElopage', false)
       })
 
       it('commits publisherId', () => {
         logout({ commit, state })
-        expect(commit).toHaveBeenNthCalledWith(11, 'publisherId', null)
+        expect(commit).toHaveBeenNthCalledWith(13, 'publisherId', null)
       })
 
       it('commits roles', () => {
         logout({ commit, state })
-        expect(commit).toHaveBeenNthCalledWith(12, 'roles', null)
+        expect(commit).toHaveBeenNthCalledWith(14, 'roles', null)
       })
 
       it('commits hideAmountGDD', () => {
         logout({ commit, state })
-        expect(commit).toHaveBeenNthCalledWith(13, 'hideAmountGDD', false)
+        expect(commit).toHaveBeenNthCalledWith(15, 'hideAmountGDD', false)
       })
 
       it('commits hideAmountGDT', () => {
         logout({ commit, state })
-        expect(commit).toHaveBeenNthCalledWith(14, 'hideAmountGDT', true)
+        expect(commit).toHaveBeenNthCalledWith(16, 'hideAmountGDT', true)
       })
 
       it('commits email', () => {
         logout({ commit, state })
-        expect(commit).toHaveBeenNthCalledWith(15, 'email', '')
+        expect(commit).toHaveBeenNthCalledWith(17, 'email', '')
       })
 
       // how to get this working?