diff --git a/admin/src/components/ContributionMessages/ContributionMessagesFormular.vue b/admin/src/components/ContributionMessages/ContributionMessagesFormular.vue
index 1286104a4..3d1ceafb2 100644
--- a/admin/src/components/ContributionMessages/ContributionMessagesFormular.vue
+++ b/admin/src/components/ContributionMessages/ContributionMessagesFormular.vue
@@ -2,12 +2,24 @@
   <div class="contribution-messages-formular">
     <div class="mt-5">
       <b-form @reset.prevent="onReset" @submit="onSubmit(messageType.DIALOG)">
-        <b-form-textarea
-          id="textarea"
-          v-model="form.text"
-          :placeholder="$t('contributionLink.memo')"
-          rows="3"
-        ></b-form-textarea>
+        <b-tabs content-class="mt-3" v-model="chatOrMemo">
+          <b-tab :title="$t('moderator.chat')" active>
+            <b-form-textarea
+              id="textarea"
+              v-model="form.text"
+              :placeholder="$t('contributionLink.memo')"
+              rows="3"
+            ></b-form-textarea>
+          </b-tab>
+          <b-tab :title="$t('moderator.memo')">
+            <b-form-textarea
+              id="textarea"
+              v-model="form.memo"
+              :placeholder="$t('contributionLink.memo')"
+              rows="3"
+            ></b-form-textarea>
+          </b-tab>
+        </b-tabs>
         <b-row class="mt-4 mb-6">
           <b-col>
             <b-button type="reset" variant="danger">{{ $t('form.cancel') }}</b-button>
@@ -17,7 +29,16 @@
               type="button"
               variant="warning"
               class="text-black"
-              :disabled="disabled"
+              @click.prevent="enableMemo()"
+              data-test="submit-memo"
+            >
+              {{ $t('moderator.memo-modify') }}
+            </b-button>
+            <b-button
+              type="button"
+              variant="warning"
+              class="text-black"
+              :disabled="moderatorDisabled"
               @click.prevent="onSubmit(messageType.MODERATOR)"
               data-test="submit-moderator"
             >
@@ -43,6 +64,15 @@
 </template>
 <script>
 import { adminCreateContributionMessage } from '@/graphql/adminCreateContributionMessage'
+import gql from 'graphql-tag'
+
+export const adminUpdateContribution = gql`
+  mutation ($id: Int!, $memo: String!) {
+    adminUpdateContribution(id: $id, memo: $memo) {
+      memo
+    }
+  }
+`
 
 export default {
   name: 'ContributionMessagesFormular',
@@ -51,13 +81,19 @@ export default {
       type: Number,
       required: true,
     },
+    contributionMemo: {
+      type: String,
+      required: true,
+    },
   },
   data() {
     return {
       form: {
         text: '',
+        memo: this.contributionMemo,
       },
       loading: false,
+      chatOrMemo: 0, // 0 = Chat, 1 = Memo
       messageType: {
         DIALOG: 'DIALOG',
         MODERATOR: 'MODERATOR',
@@ -67,34 +103,65 @@ export default {
   methods: {
     onSubmit(mType) {
       this.loading = true
-      this.$apollo
-        .mutate({
-          mutation: adminCreateContributionMessage,
-          variables: {
-            contributionId: this.contributionId,
-            message: this.form.text,
-            messageType: mType,
-          },
-        })
-        .then((result) => {
-          this.$emit('get-list-contribution-messages', this.contributionId)
-          this.$emit('update-status', this.contributionId)
-          this.form.text = ''
-          this.toastSuccess(this.$t('message.request'))
-          this.loading = false
-        })
-        .catch((error) => {
-          this.toastError(error.message)
-          this.loading = false
-        })
+      if (this.chatOrMemo === 0) {
+        this.$apollo
+          .mutate({
+            mutation: adminCreateContributionMessage,
+            variables: {
+              contributionId: this.contributionId,
+              message: this.form.text,
+              messageType: mType,
+            },
+          })
+          .then((result) => {
+            this.$emit('get-list-contribution-messages', this.contributionId)
+            this.$emit('update-status', this.contributionId)
+            this.form.text = ''
+            this.toastSuccess(this.$t('message.request'))
+            this.loading = false
+          })
+          .catch((error) => {
+            this.toastError(error.message)
+            this.loading = false
+          })
+      } else {
+        this.$apollo
+          .mutate({
+            mutation: adminUpdateContribution,
+            variables: {
+              id: this.contributionId,
+              memo: this.form.memo,
+            },
+          })
+          .then((result) => {
+            this.$emit('get-list-contribution-messages', this.contributionId)
+            this.$emit('update-status', this.contributionId)
+            this.toastSuccess(this.$t('message.request'))
+            this.loading = false
+          })
+          .catch((error) => {
+            this.toastError(error.message)
+            this.loading = false
+          })
+      }
     },
     onReset(event) {
       this.form.text = ''
     },
+    enableMemo() {
+      this.chatOrMemo = 1
+    },
   },
   computed: {
     disabled() {
-      return this.form.text === '' || this.loading
+      return (
+        (this.chatOrMemo === 0 && this.form.text === '') ||
+        this.loading ||
+        (this.chatOrMemo === 1 && this.form.memo.length < 5)
+      )
+    },
+    moderatorDisabled() {
+      return this.form.text === '' || this.loading || this.chatOrMemo === 1
     },
   },
 }
diff --git a/admin/src/components/ContributionMessages/ContributionMessagesList.vue b/admin/src/components/ContributionMessages/ContributionMessagesList.vue
index 15877feef..9dab2e4d5 100644
--- a/admin/src/components/ContributionMessages/ContributionMessagesList.vue
+++ b/admin/src/components/ContributionMessages/ContributionMessagesList.vue
@@ -11,6 +11,7 @@
     <div v-if="contributionStatus === 'PENDING' || contributionStatus === 'IN_PROGRESS'">
       <contribution-messages-formular
         :contributionId="contributionId"
+        :contributionMemo="contributionMemo"
         @get-list-contribution-messages="$apollo.queries.Messages.refetch()"
         @update-status="updateStatus"
       />
@@ -33,6 +34,10 @@ export default {
       type: Number,
       required: true,
     },
+    contributionMemo: {
+      type: String,
+      required: true,
+    },
     contributionStatus: {
       type: String,
       required: true,
diff --git a/admin/src/components/ContributionMessages/slots/ContributionMessagesListItem.vue b/admin/src/components/ContributionMessages/slots/ContributionMessagesListItem.vue
index 4492fa88f..5abbb0a33 100644
--- a/admin/src/components/ContributionMessages/slots/ContributionMessagesListItem.vue
+++ b/admin/src/components/ContributionMessages/slots/ContributionMessagesListItem.vue
@@ -1,5 +1,5 @@
 <template>
-  <div class="contribution-messages-list-item">
+  <div class="contribution-messages-list-item clearfix">
     <div v-if="isModeratorMessage" class="text-right p-2 rounded-sm mb-3" :class="boxClass">
       <small class="ml-4" data-test="moderator-label">
         {{ $t('moderator.moderator') }}
@@ -11,7 +11,11 @@
         {{ message.userFirstName }} {{ message.userLastName }}
       </span>
       <b-avatar square variant="warning"></b-avatar>
-
+      <small v-if="isHistory">
+        <hr />
+        {{ $t('moderator.history') }}
+        <hr />
+      </small>
       <parse-message v-bind="message" data-test="moderator-message"></parse-message>
       <small v-if="isModeratorHiddenMessage">
         <hr />
diff --git a/admin/src/components/Tables/OpenCreationsTable.vue b/admin/src/components/Tables/OpenCreationsTable.vue
index 9542f058d..7d1b5ab84 100644
--- a/admin/src/components/Tables/OpenCreationsTable.vue
+++ b/admin/src/components/Tables/OpenCreationsTable.vue
@@ -24,6 +24,13 @@
           </b-button>
         </div>
       </template>
+      <template #cell(memo)="row">
+        {{ row.value }}
+        <small v-if="row.item.updatedBy > 0">
+          <hr />
+          {{ $t('moderator.memo-modified') }}
+        </small>
+      </template>
       <template #cell(editCreation)="row">
         <div v-if="!myself(row.item)">
           <b-button
@@ -104,6 +111,7 @@
                 :contributionId="row.item.id"
                 :contributionStatus="row.item.status"
                 :contributionUserId="row.item.userId"
+                :contributionMemo="row.item.memo"
                 @update-status="updateStatus"
               />
             </div>
diff --git a/admin/src/graphql/adminListContributions.js b/admin/src/graphql/adminListContributions.js
index 9d814b95d..e11ebfa05 100644
--- a/admin/src/graphql/adminListContributions.js
+++ b/admin/src/graphql/adminListContributions.js
@@ -30,6 +30,8 @@ export const adminListContributions = gql`
         contributionDate
         confirmedAt
         confirmedBy
+        updatedAt
+        updatedBy
         status
         messagesCount
         deniedAt
diff --git a/admin/src/locales/de.json b/admin/src/locales/de.json
index 33ef36053..2277d64ed 100644
--- a/admin/src/locales/de.json
+++ b/admin/src/locales/de.json
@@ -109,9 +109,14 @@
     "request": "Die Anfrage wurde gesendet."
   },
   "moderator": {
+    "chat": "Chat",
     "history": "Die Daten wurden geändert. Dies sind die alten Daten.",
     "moderator": "Moderator",
     "notice": "Moderator Notiz",
+    "notice_tooltip": "Nur Moderatoren können die Nachricht sehen",
+    "memo": "Memo",
+    "memo-modify": "Memo bearbeiten",
+    "memo-modified": "Memo vom Moderator bearbeitet",
     "request": "Diese Nachricht ist nur für die Moderatoren sichtbar!"
   },
   "name": "Name",
diff --git a/admin/src/locales/en.json b/admin/src/locales/en.json
index 6c8b36f15..f9d612606 100644
--- a/admin/src/locales/en.json
+++ b/admin/src/locales/en.json
@@ -109,9 +109,14 @@
     "request": "Request has been sent."
   },
   "moderator": {
+    "chat": "Chat",
     "history": "The data has been changed. This is the old data.",
     "moderator": "Moderator",
     "notice": "Moderator note",
+    "notice_tooltip": "Only moderators can see the message",
+    "memo": "Memo",
+    "memo-modify": "Modify Memo",
+    "memo-modified": "Memo edited by moderator",
     "request": "This message is only visible to the moderators!"
   },
   "name": "Name",
diff --git a/backend/src/graphql/arg/AdminUpdateContributionArgs.ts b/backend/src/graphql/arg/AdminUpdateContributionArgs.ts
index f7288cb28..5fb2228f1 100644
--- a/backend/src/graphql/arg/AdminUpdateContributionArgs.ts
+++ b/backend/src/graphql/arg/AdminUpdateContributionArgs.ts
@@ -12,16 +12,16 @@ export class AdminUpdateContributionArgs {
   @IsPositive()
   id: number
 
-  @Field(() => Decimal)
+  @Field(() => Decimal, { nullable: true })
   @IsPositiveDecimal()
-  amount: Decimal
+  amount?: Decimal | null
 
-  @Field(() => String)
+  @Field(() => String, { nullable: true })
   @MaxLength(MEMO_MAX_CHARS)
   @MinLength(MEMO_MIN_CHARS)
-  memo: string
+  memo?: string | null
 
-  @Field(() => String)
+  @Field(() => String, { nullable: true })
   @isValidDateString()
-  creationDate: string
+  creationDate?: string | null
 }
diff --git a/backend/src/graphql/resolver/ContributionResolver.ts b/backend/src/graphql/resolver/ContributionResolver.ts
index 9a267e1db..3cf0119b0 100644
--- a/backend/src/graphql/resolver/ContributionResolver.ts
+++ b/backend/src/graphql/resolver/ContributionResolver.ts
@@ -256,10 +256,9 @@ export class ContributionResolver {
       ])
     })
     const moderator = getUser(context)
-    const { amount } = adminUpdateContributionArgs
 
     const result = new AdminUpdateContribution()
-    result.amount = amount
+    result.amount = contribution.amount
     result.memo = contribution.memo
     result.date = contribution.contributionDate
 
@@ -267,7 +266,7 @@ export class ContributionResolver {
       { id: contribution.userId } as DbUser,
       moderator,
       contribution,
-      amount,
+      contribution.amount,
     )
 
     return result
diff --git a/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContribution.role.ts b/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContribution.role.ts
index 53ea21f45..472db4a96 100644
--- a/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContribution.role.ts
+++ b/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContribution.role.ts
@@ -12,8 +12,8 @@ export abstract class UnconfirmedContributionRole {
 
   public constructor(
     protected self: Contribution,
-    private updatedAmount: Decimal,
-    private updatedCreationDate: Date,
+    protected updatedAmount: Decimal,
+    protected updatedCreationDate: Date,
   ) {
     if (self.confirmedAt || self.deniedAt) {
       throw new LogError("this contribution isn't unconfirmed!")
diff --git a/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContributionAdmin.role.ts b/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContributionAdmin.role.ts
index 4c395b42b..593308a7c 100644
--- a/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContributionAdmin.role.ts
+++ b/backend/src/interactions/updateUnconfirmedContribution/UnconfirmedContributionAdmin.role.ts
@@ -15,13 +15,17 @@ export class UnconfirmedContributionAdminRole extends UnconfirmedContributionRol
     private updateData: AdminUpdateContributionArgs,
     private moderator: User,
   ) {
-    super(contribution, updateData.amount, new Date(updateData.creationDate))
+    super(
+      contribution,
+      updateData.amount ?? contribution.amount,
+      updateData.creationDate ? new Date(updateData.creationDate) : contribution.contributionDate,
+    )
   }
 
   protected update(): void {
-    this.self.amount = this.updateData.amount
-    this.self.memo = this.updateData.memo
-    this.self.contributionDate = new Date(this.updateData.creationDate)
+    this.self.amount = this.updatedAmount
+    this.self.memo = this.updateData.memo ?? this.self.memo
+    this.self.contributionDate = this.updatedCreationDate
     this.self.contributionStatus = ContributionStatus.PENDING
     this.self.updatedAt = new Date()
     this.self.updatedBy = this.moderator.id