diff --git a/backend/src/graphql/resolver/ContributionResolver.ts b/backend/src/graphql/resolver/ContributionResolver.ts
index 2cbbbc27a..84106aa37 100644
--- a/backend/src/graphql/resolver/ContributionResolver.ts
+++ b/backend/src/graphql/resolver/ContributionResolver.ts
@@ -263,6 +263,10 @@ export class ContributionResolver {
       ])
     })
     const moderator = getUser(context)
+    const user = await DbUser.findOneOrFail({
+      where: { id: contribution.userId },
+      relations: ['emailContact'],
+    })
 
     const result = new AdminUpdateContribution()
     result.amount = contribution.amount
@@ -277,14 +281,14 @@ export class ContributionResolver {
     )
     if (createdByUserChangedByModerator && adminUpdateContributionArgs.memo) {
       void sendContributionChangedByModeratorEmail({
-        firstName: contribution.user.firstName,
-        lastName: contribution.user.lastName,
-        email: contribution.user.emailContact.email,
-        language: contribution.user.language,
+        firstName: user.firstName,
+        lastName: user.lastName,
+        email: user.emailContact.email,
+        language: user.language,
         senderFirstName: moderator.firstName,
         senderLastName: moderator.lastName,
-        contributionMemo: contribution.memo,
-        contributionMemoUpdated: adminUpdateContributionArgs.memo
+        contributionMemo: updateUnconfirmedContributionContext.getOldMemo(),
+        contributionMemoUpdated: contribution.memo
       })
     }
 
diff --git a/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContribution.role.ts b/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContribution.role.ts
index acdb7b750..b4926a640 100644
--- a/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContribution.role.ts
+++ b/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContribution.role.ts
@@ -25,11 +25,6 @@ export abstract class UnconfirmedContributionRole {
   protected abstract checkAuthorization(user: User, role: Role): void
   // second, check if contribution is still valid after update
   protected async validate(clientTimezoneOffset: number): Promise<void> {
-    // TODO: remove this restriction
-    if (this.self.contributionDate.getMonth() !== this.updatedCreationDate.getMonth()) {
-      throw new LogError('Month of contribution can not be changed')
-    }
-
     const contributionLogic = new ContributionLogic(this.self)
     this.availableCreationSums = await contributionLogic.getAvailableCreationSums(
       clientTimezoneOffset,
diff --git a/backend/src/interactions/updateUnconfirmedContribution/UpdateUnconfirmedContribution.context.ts b/backend/src/interactions/updateUnconfirmedContribution/UpdateUnconfirmedContribution.context.ts
index 0d70662d3..561866597 100644
--- a/backend/src/interactions/updateUnconfirmedContribution/UpdateUnconfirmedContribution.context.ts
+++ b/backend/src/interactions/updateUnconfirmedContribution/UpdateUnconfirmedContribution.context.ts
@@ -14,6 +14,7 @@ import { UnconfirmedContributionAdminRole } from './UnconfirmedContributionAdmin
 import { UnconfirmedContributionUserRole } from './UnconfirmedContributionUser.role'
 
 export class UpdateUnconfirmedContributionContext {
+  private oldMemoText: string
   /**
    *
    * @param id contribution id for update
@@ -46,6 +47,7 @@ export class UpdateUnconfirmedContributionContext {
     if (!contributionToUpdate) {
       throw new LogError('Contribution not found', this.id)
     }
+    this.oldMemoText = contributionToUpdate.memo
     const contributionMessageBuilder = new ContributionMessageBuilder()
     contributionMessageBuilder
       .setParentContribution(contributionToUpdate)
@@ -85,4 +87,8 @@ export class UpdateUnconfirmedContributionContext {
       createdByUserChangedByModerator
     }
   }
+
+  public getOldMemo(): string {
+    return this.oldMemoText
+  }
 }
diff --git a/dht-node/src/config/index.ts b/dht-node/src/config/index.ts
index 7aed88ccd..109675869 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: '0074-insert_communityuuid in_existing_users',
+  DB_VERSION: '0075-add_updated_by_contribution',
   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 2770ada06..b663bea91 100644
--- a/federation/src/config/index.ts
+++ b/federation/src/config/index.ts
@@ -10,7 +10,7 @@ Decimal.set({
 })
 
 const constants = {
-  DB_VERSION: '0074-insert_communityuuid in_existing_users',
+  DB_VERSION: '0075-add_updated_by_contribution',
   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