diff --git a/backend/src/graphql/arg/UpdateUserInfosArgs.ts b/backend/src/graphql/arg/UpdateUserInfosArgs.ts
index d3e3dc744..b9617f6df 100644
--- a/backend/src/graphql/arg/UpdateUserInfosArgs.ts
+++ b/backend/src/graphql/arg/UpdateUserInfosArgs.ts
@@ -3,6 +3,7 @@ import { ArgsType, Field, InputType, Int } from 'type-graphql'
 
 import { GmsPublishLocationType } from '@enum/GmsPublishLocationType'
 import { GmsPublishNameType } from '@enum/GmsPublishNameType'
+import { PublishNameType } from '@enum/PublishNameType'
 import { Location } from '@model/Location'
 
 import { isValidLocation } from '@/graphql/validator/Location'
@@ -58,9 +59,9 @@ export class UpdateUserInfosArgs {
   @IsEnum(GmsPublishNameType)
   gmsPublishName?: GmsPublishNameType | null
 
-  @Field(() => GmsPublishNameType, { nullable: true })
-  @IsEnum(GmsPublishNameType)
-  humhubPublishName?: GmsPublishNameType | null
+  @Field(() => PublishNameType, { nullable: true })
+  @IsEnum(PublishNameType)
+  humhubPublishName?: PublishNameType | null
 
   @Field(() => Location, { nullable: true })
   @isValidLocation()
diff --git a/backend/src/graphql/enum/PublishNameType.ts b/backend/src/graphql/enum/PublishNameType.ts
new file mode 100644
index 000000000..5fa86ee9f
--- /dev/null
+++ b/backend/src/graphql/enum/PublishNameType.ts
@@ -0,0 +1,19 @@
+import { registerEnumType } from 'type-graphql'
+
+/**
+ * Enum for decide which parts from first- and last-name are allowed to be published in an extern service
+ */
+export enum PublishNameType {
+  PUBLISH_NAME_NONE = 0,
+  PUBLISH_NAME_INITIALS = 1,
+  PUBLISH_NAME_FIRST = 2,
+  PUBLISH_NAME_FIRST_INITIAL = 3,
+  PUBLISH_NAME_LAST = 4,
+  PUBLISH_NAME_INITIAL_LAST = 5,
+  PUBLISH_NAME_FULL = 6,
+}
+
+registerEnumType(PublishNameType, {
+  name: 'PublishNameType', // this one is mandatory
+  description: 'Type of first- and last-name publishing for extern service', // this one is optional
+})
diff --git a/backend/src/graphql/model/User.ts b/backend/src/graphql/model/User.ts
index a6a5ad199..aa4baaac0 100644
--- a/backend/src/graphql/model/User.ts
+++ b/backend/src/graphql/model/User.ts
@@ -3,6 +3,7 @@ import { ObjectType, Field, Int } from 'type-graphql'
 
 import { GmsPublishLocationType } from '@enum/GmsPublishLocationType'
 import { GmsPublishNameType } from '@enum/GmsPublishNameType'
+import { PublishNameType } from '@enum/PublishNameType'
 
 import { KlickTipp } from './KlickTipp'
 
@@ -91,8 +92,8 @@ export class User {
   @Field(() => GmsPublishNameType, { nullable: true })
   gmsPublishName: GmsPublishNameType | null
 
-  @Field(() => GmsPublishNameType, { nullable: true })
-  humhubPublishName: GmsPublishNameType | null
+  @Field(() => PublishNameType, { nullable: true })
+  humhubPublishName: PublishNameType | null
 
   @Field(() => GmsPublishLocationType, { nullable: true })
   gmsPublishLocation: GmsPublishLocationType | null
diff --git a/frontend/src/components/UserSettings/UserGMSNamingFormat.spec.js b/frontend/src/components/UserSettings/UserGMSNamingFormat.spec.js
new file mode 100644
index 000000000..e48f6baba
--- /dev/null
+++ b/frontend/src/components/UserSettings/UserGMSNamingFormat.spec.js
@@ -0,0 +1,84 @@
+import { mount } from '@vue/test-utils'
+import UserGMSNamingFormat from './UserGMSNamingFormat.vue'
+import { toastErrorSpy } from '@test/testSetup'
+
+const mockAPIcall = jest.fn()
+
+const storeCommitMock = jest.fn()
+
+const localVue = global.localVue
+
+describe('UserNamingFormat', () => {
+  let wrapper
+  beforeEach(() => {
+    wrapper = mount(UserGMSNamingFormat, {
+      mocks: {
+        $t: (key) => key, // Mocking the translation function
+        $store: {
+          state: {
+            gmsPublishName: null,
+          },
+          commit: storeCommitMock,
+        },
+        $apollo: {
+          mutate: mockAPIcall,
+        },
+      },
+      localVue,
+      propsData: {
+        selectedOption: 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS',
+        initialValue: 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS',
+        attrName: 'gmsPublishName',
+        successMessage: 'success message',
+      },
+    })
+  })
+
+  afterEach(() => {
+    wrapper.destroy()
+  })
+
+  it('renders the correct dropdown options', () => {
+    const dropdownItems = wrapper.findAll('.dropdown-item')
+    expect(dropdownItems.length).toBe(5)
+
+    const labels = dropdownItems.wrappers.map((item) => item.text())
+    expect(labels).toEqual([
+      'settings.GMS.publish-name.alias-or-initials',
+      'settings.GMS.publish-name.initials',
+      'settings.GMS.publish-name.first',
+      'settings.GMS.publish-name.first-initial',
+      'settings.GMS.publish-name.name-full',
+    ])
+  })
+
+  it('updates selected option on click', async () => {
+    const dropdownItem = wrapper.findAll('.dropdown-item').at(3) // Click the fourth item
+    await dropdownItem.trigger('click')
+
+    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().valueChanged).toBeFalsy()
+  })
+
+  describe('update with error', () => {
+    beforeEach(async () => {
+      mockAPIcall.mockRejectedValue({
+        message: 'Ouch',
+      })
+      const dropdownItem = wrapper.findAll('.dropdown-item').at(2) // Click the third item
+      await dropdownItem.trigger('click')
+    })
+
+    it('toasts an error message', () => {
+      expect(toastErrorSpy).toBeCalledWith('Ouch')
+    })
+  })
+})
diff --git a/frontend/src/components/UserSettings/UserGMSNamingFormat.vue b/frontend/src/components/UserSettings/UserGMSNamingFormat.vue
new file mode 100644
index 000000000..98e0911ed
--- /dev/null
+++ b/frontend/src/components/UserSettings/UserGMSNamingFormat.vue
@@ -0,0 +1,92 @@
+<template>
+  <div class="user-g-m-s-naming-format">
+    <b-dropdown v-model="selectedOption">
+      <template slot="button-content">{{ selectedOptionLabel }}</template>
+      <b-dropdown-item
+        v-for="option in dropdownOptions"
+        @click.prevent="update(option)"
+        :key="option.value"
+        :value="option.value"
+        :title="option.title"
+      >
+        {{ option.label }}
+      </b-dropdown-item>
+    </b-dropdown>
+  </div>
+</template>
+<script>
+import { updateUserInfos } from '@/graphql/mutations'
+
+export default {
+  name: 'UserGMSNamingFormat',
+  props: {
+    initialValue: { type: String, default: 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS' },
+    attrName: { type: String },
+    successMessage: { type: String },
+  },
+  data() {
+    return {
+      selectedOption: this.initialValue,
+      dropdownOptions: [
+        {
+          label: this.$t('settings.GMS.publish-name.alias-or-initials'),
+          title: this.$t('settings.GMS.publish-name.alias-or-initials-tooltip'),
+          value: 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS',
+        },
+        {
+          label: this.$t('settings.GMS.publish-name.initials'),
+          title: this.$t('settings.GMS.publish-name.initials-tooltip'),
+          value: 'GMS_PUBLISH_NAME_INITIALS',
+        },
+        {
+          label: this.$t('settings.GMS.publish-name.first'),
+          title: this.$t('settings.GMS.publish-name.first-tooltip'),
+          value: 'GMS_PUBLISH_NAME_FIRST',
+        },
+        {
+          label: this.$t('settings.GMS.publish-name.first-initial'),
+          title: this.$t('settings.GMS.publish-name.first-initial-tooltip'),
+          value: 'GMS_PUBLISH_NAME_FIRST_INITIAL',
+        },
+        {
+          label: this.$t('settings.GMS.publish-name.name-full'),
+          title: this.$t('settings.GMS.publish-name.name-full-tooltip'),
+          value: 'GMS_PUBLISH_NAME_FULL',
+        },
+      ],
+    }
+  },
+  computed: {
+    selectedOptionLabel() {
+      return this.dropdownOptions.find((option) => option.value === this.selectedOption).label
+    },
+  },
+  methods: {
+    async update(option) {
+      if (option.value === this.selectedOption) {
+        return
+      }
+      try {
+        const variables = []
+        variables[this.attrName] = option.value
+        await this.$apollo.mutate({
+          mutation: updateUserInfos,
+          variables,
+        })
+        this.toastSuccess(this.successMessage)
+        this.selectedOption = option.value
+        this.$store.commit(this.attrName, option.value)
+        this.$emit('valueChanged', option.value)
+      } catch (error) {
+        this.toastError(error.message)
+      }
+    },
+  },
+}
+</script>
+<style>
+.user-g-m-s-naming-format > .dropdown,
+.user-g-m-s-naming-format > .dropdown > .dropdown-toggle > ul.dropdown-menu {
+  width: 100%;
+}
+</style>
diff --git a/frontend/src/components/UserSettings/UserNamingFormat.spec.js b/frontend/src/components/UserSettings/UserNamingFormat.spec.js
index f07f5e3f2..8ded29ca7 100644
--- a/frontend/src/components/UserSettings/UserNamingFormat.spec.js
+++ b/frontend/src/components/UserSettings/UserNamingFormat.spec.js
@@ -26,9 +26,9 @@ describe('UserNamingFormat', () => {
       },
       localVue,
       propsData: {
-        selectedOption: 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS',
-        initialValue: 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS',
-        attrName: 'gmsPublishName',
+        selectedOption: 'PUBLISH_NAME_NONE',
+        initialValue: 'PUBLISH_NAME_NONE',
+        attrName: 'publishName',
         successMessage: 'success message',
       },
     })
@@ -40,15 +40,17 @@ describe('UserNamingFormat', () => {
 
   it('renders the correct dropdown options', () => {
     const dropdownItems = wrapper.findAll('.dropdown-item')
-    expect(dropdownItems.length).toBe(5)
+    expect(dropdownItems.length).toBe(7)
 
     const labels = dropdownItems.wrappers.map((item) => item.text())
     expect(labels).toEqual([
-      'settings.GMS.publish-name.alias-or-initials',
-      'settings.GMS.publish-name.initials',
-      'settings.GMS.publish-name.first',
-      'settings.GMS.publish-name.first-initial',
-      'settings.GMS.publish-name.name-full',
+      'settings.publish-name.none',
+      'settings.publish-name.initials',
+      'settings.publish-name.first',
+      'settings.publish-name.first-initial',
+      'settings.publish-name.last',
+      'settings.publish-name.last-initial',
+      'settings.publish-name.full',
     ])
   })
 
@@ -58,7 +60,7 @@ describe('UserNamingFormat', () => {
 
     expect(wrapper.emitted().valueChanged).toBeTruthy()
     expect(wrapper.emitted().valueChanged.length).toBe(1)
-    expect(wrapper.emitted().valueChanged[0]).toEqual(['GMS_PUBLISH_NAME_FIRST_INITIAL'])
+    expect(wrapper.emitted().valueChanged[0]).toEqual(['PUBLISH_NAME_FIRST_INITIAL'])
   })
 
   it('does not update when clicking on already selected option', async () => {
diff --git a/frontend/src/components/UserSettings/UserNamingFormat.vue b/frontend/src/components/UserSettings/UserNamingFormat.vue
index 510541219..658f276ca 100644
--- a/frontend/src/components/UserSettings/UserNamingFormat.vue
+++ b/frontend/src/components/UserSettings/UserNamingFormat.vue
@@ -20,7 +20,7 @@ import { updateUserInfos } from '@/graphql/mutations'
 export default {
   name: 'UserNamingFormat',
   props: {
-    initialValue: { type: String, default: 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS' },
+    initialValue: { type: String, default: 'PUBLISH_NAME_NONE' },
     attrName: { type: String },
     successMessage: { type: String },
   },
@@ -29,29 +29,39 @@ export default {
       selectedOption: this.initialValue,
       dropdownOptions: [
         {
-          label: this.$t('settings.GMS.publish-name.alias-or-initials'),
-          title: this.$t('settings.GMS.publish-name.alias-or-initials-tooltip'),
-          value: 'GMS_PUBLISH_NAME_ALIAS_OR_INITALS',
+          label: this.$t('settings.publish-name.none'),
+          title: this.$t('settings.publish-name.none-tooltip'),
+          value: 'PUBLISH_NAME_NONE',
         },
         {
-          label: this.$t('settings.GMS.publish-name.initials'),
-          title: this.$t('settings.GMS.publish-name.initials-tooltip'),
-          value: 'GMS_PUBLISH_NAME_INITIALS',
+          label: this.$t('settings.publish-name.initials'),
+          title: this.$t('settings.publish-name.initials-tooltip'),
+          value: 'PUBLISH_NAME_INITIALS',
         },
         {
-          label: this.$t('settings.GMS.publish-name.first'),
-          title: this.$t('settings.GMS.publish-name.first-tooltip'),
-          value: 'GMS_PUBLISH_NAME_FIRST',
+          label: this.$t('settings.publish-name.first'),
+          title: this.$t('settings.publish-name.first-tooltip'),
+          value: 'PUBLISH_NAME_FIRST',
         },
         {
-          label: this.$t('settings.GMS.publish-name.first-initial'),
-          title: this.$t('settings.GMS.publish-name.first-initial-tooltip'),
-          value: 'GMS_PUBLISH_NAME_FIRST_INITIAL',
+          label: this.$t('settings.publish-name.first-initial'),
+          title: this.$t('settings.publish-name.first-initial-tooltip'),
+          value: 'PUBLISH_NAME_FIRST_INITIAL',
         },
         {
-          label: this.$t('settings.GMS.publish-name.name-full'),
-          title: this.$t('settings.GMS.publish-name.name-full-tooltip'),
-          value: 'GMS_PUBLISH_NAME_FULL',
+          label: this.$t('settings.publish-name.last'),
+          title: this.$t('settings.publish-name.last-tooltip'),
+          value: 'PUBLISH_NAME_LAST',
+        },
+        {
+          label: this.$t('settings.publish-name.last-initial'),
+          title: this.$t('settings.publish-name.last-initial-tooltip'),
+          value: 'PUBLISH_NAME_INITIAL_LAST',
+        },
+        {
+          label: this.$t('settings.publish-name.full'),
+          title: this.$t('settings.publish-name.full-tooltip'),
+          value: 'PUBLISH_NAME_FULL',
         },
       ],
     }
diff --git a/frontend/src/graphql/mutations.js b/frontend/src/graphql/mutations.js
index ab78ca03b..efcbcffb3 100644
--- a/frontend/src/graphql/mutations.js
+++ b/frontend/src/graphql/mutations.js
@@ -37,7 +37,7 @@ export const updateUserInfos = gql`
     $gmsAllowed: Boolean
     $humhubAllowed: Boolean
     $gmsPublishName: GmsPublishNameType
-    $humhubPublishName: GmsPublishNameType
+    $humhubPublishName: PublishNameType
     $gmsLocation: Location
     $gmsPublishLocation: GmsPublishLocationType
   ) {
diff --git a/frontend/src/locales/de.json b/frontend/src/locales/de.json
index df59f05b2..da212d379 100644
--- a/frontend/src/locales/de.json
+++ b/frontend/src/locales/de.json
@@ -330,7 +330,6 @@
     "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."
@@ -374,6 +373,22 @@
       },
       "subtitle": "Wenn du dein Passwort vergessen hast, kannst du es hier zurücksetzen."
     },
+    "publish-name": {
+      "none": "Keine",
+      "none-tooltip": "Vorname und Nachname bleiben leer",
+      "first": "Vorname",
+      "first-tooltip": "Nur der Vornamen, z.B. Max",
+      "first-initial": "Vorname und Initiale",
+      "first-initial-tooltip": "Vornamen plus Anfangsbuchstabe des Nachnamens, z.B. Max M.",
+      "last": "Nachname",
+      "last-tooltip": "Nur der Nachname, z.B. Mustermann",
+      "last-initial": "Initiale und Nachname",
+      "last-initial-tooltip": "Anfangsbuchstabe des Vornamen plus Nachname, z.B. M. Mustermann",
+      "initials": "Initialen",
+      "initials-tooltip": "Nur die Initialen von Vor- und Nachname, z.B. M. M.",
+      "full": "Ganzer Name",
+      "full-tooltip": "Vollständiger Name: Vorname plus Nachname, z.B. Max Mustermann"
+    },
     "showAmountGDD": "Dein GDD Betrag ist sichtbar.",
     "showAmountGDT": "Dein GDT Betrag ist sichtbar.",
     "username": {
diff --git a/frontend/src/locales/en.json b/frontend/src/locales/en.json
index 0377a3eec..7bba0d5eb 100644
--- a/frontend/src/locales/en.json
+++ b/frontend/src/locales/en.json
@@ -330,7 +330,6 @@
     "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."
@@ -374,6 +373,22 @@
       },
       "subtitle": "If you have forgotten your password, you can reset it here."
     },
+    "publish-name": {
+      "none": "None",
+      "none-tooltip": "first name and last name are empty",
+      "first": "first name",
+      "first-tooltip": "the first name only",
+      "first-initial": "first name and initial",
+      "first-initial-tooltip": "first name plus initial of last name",
+      "last": "last name",
+      "last-tooltip": "last name only",
+      "last-initial": "initial and last name",
+      "last-initial-tooltip": "First letter of the first name plus last name",
+      "initials": "initials",
+      "initials-tooltip": "Initials of first name and last name",
+      "full": "full name",
+      "full-tooltip": "full name: firstname plus lastname"
+    },
     "showAmountGDD": "Your GDD amount is visible.",
     "showAmountGDT": "Your GDT amount is visible.",
     "username": {
diff --git a/frontend/src/pages/Settings.vue b/frontend/src/pages/Settings.vue
index 1fb84318e..57fb9dc11 100644
--- a/frontend/src/pages/Settings.vue
+++ b/frontend/src/pages/Settings.vue
@@ -107,7 +107,7 @@
                   {{ $t('settings.GMS.naming-format') }}
                 </b-col>
                 <b-col cols="12" md="6" lg="6">
-                  <user-naming-format
+                  <user-g-m-s-naming-format
                     :initialValue="$store.state.gmsPublishName"
                     :attrName="'gmsPublishName'"
                     :successMessage="$t('settings.GMS.publish-name.updated')"
@@ -134,7 +134,6 @@
           </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.humhub.switch') }}
@@ -181,6 +180,7 @@
 </template>
 <script>
 import UserNamingFormat from '@/components/UserSettings/UserNamingFormat'
+import UserGMSNamingFormat from '@/components/UserSettings/UserGMSNamingFormat'
 import UserGMSLocationFormat from '@/components/UserSettings/UserGMSLocationFormat'
 import UserGMSLocation from '@/components/UserSettings/UserGMSLocation'
 import UserName from '@/components/UserSettings/UserName.vue'
@@ -195,6 +195,7 @@ export default {
   name: 'Profile',
   components: {
     UserNamingFormat,
+    UserGMSNamingFormat,
     UserGMSLocationFormat,
     UserGMSLocation,
     UserName,
@@ -220,9 +221,11 @@ export default {
       humhubAllowed,
     } = state
 
+    const username = this.$store.state.username || ''
+
     return {
       darkMode,
-      username: '',
+      username,
       firstName,
       lastName,
       email,
@@ -246,7 +249,7 @@ export default {
       return CONFIG.GMS_ACTIVE
     },
     isHumhub() {
-      return CONFIG.HUMHUB_ACTIVE
+      return CONFIG.HUMHUB_ACTIVE && this.username
     },
   },
   // TODO: watch: {