diff --git a/client/src/api/rueckfragen/rueckfragenAPI.spec.ts b/client/src/api/rueckfragen/rueckfragenAPI.spec.ts
index 698fbf0b11a146b71757287e0fac42a279becc18..32878a812f60c2160b08bdc25802c6c416987f1f 100644
--- a/client/src/api/rueckfragen/rueckfragenAPI.spec.ts
+++ b/client/src/api/rueckfragen/rueckfragenAPI.spec.ts
@@ -27,12 +27,12 @@ import {
   SEND_FAILED,
   sendMessage
 } from "./rueckfragenAPI";
-import { Command, CommandReference, Message, Rueckfrage, RueckfrageHeader } from "../types";
+import { Antwort, Command, CommandReference, Rueckfrage, RueckfrageHeader } from "../types";
 import axios from "axios";
 
 jest.mock("axios");
 
-describe("Topic API tests", () => {
+describe("Rueckfrage API tests", () => {
   afterEach(() => {
     jest.clearAllMocks(); // reset call counts
   });
@@ -130,7 +130,8 @@ describe("Topic API tests", () => {
       ...rueckfrage,
       antworten: [
         {
-          id: "1",
+          id: "2",
+          rueckfrageId: "1",
           postfachId: "sjkdfhlksdfsdf",
           nachrichtEventId: "1",
           message: "test message",
@@ -191,9 +192,10 @@ describe("Topic API tests", () => {
       status: "FINISHED",
       createdAt: 1
     };
-    const newMessage: Message = {
+    const newMessage: Antwort = {
       attachments: [],
       id: "1",
+      rueckfrageId: "1",
       postfachId: "sjkdfhlksdfsdf",
       nachrichtEventId: "1",
       message: "New message"
diff --git a/client/src/api/rueckfragen/rueckfragenAPI.ts b/client/src/api/rueckfragen/rueckfragenAPI.ts
index 0cd4ca4e9024b5e700c45709a7d08d61365c6a8c..dd990fabb4ba75b3f8afac5755a5a1822f81adc8 100644
--- a/client/src/api/rueckfragen/rueckfragenAPI.ts
+++ b/client/src/api/rueckfragen/rueckfragenAPI.ts
@@ -20,7 +20,7 @@
  * unter der Lizenz sind dem Lizenztext zu entnehmen.
  */
 import axios from "axios";
-import { Command, CommandReference, Message, Rueckfrage, RueckfrageHeader } from "../types";
+import { Antwort, Command, CommandReference, Rueckfrage, RueckfrageHeader } from "../types";
 
 export const SEND_FAILED = "send failed";
 export const STATUS_CHECK_FAILED = "sending status check failed";
@@ -58,7 +58,7 @@ export async function getRueckfrageOfPostfach(link: string): Promise<Rueckfrage>
   }
 }
 
-export async function sendMessage(newMessage: Message): Promise<Message> {
+export async function sendMessage(newMessage: Antwort): Promise<Antwort> {
   try {
     const response = await axios.put(`/api/antwort`, newMessage, { timeout: SEND_TIMEOUT_IN_MS });
     await checkSendStatus(response.data);
diff --git a/client/src/api/types.ts b/client/src/api/types.ts
index 6b31d8975b05a96ba4488cd77f0eadbbc99bd56f..a459be77bd363acb547a7d39729735b6e53788a0 100644
--- a/client/src/api/types.ts
+++ b/client/src/api/types.ts
@@ -43,6 +43,10 @@ interface Nachricht extends Message {
   trustLevel: TrustLevel;
 }
 
+export interface Antwort extends Message {
+  rueckfrageId: string;
+}
+
 interface NachrichtHeader extends BaseMessage {
   title: string;
   vorgangId: string;
@@ -61,7 +65,7 @@ interface BaseRueckfrage {
 
 export interface Rueckfrage extends BaseRueckfrage {
   nachricht: Nachricht;
-  antworten: Message[];
+  antworten: Antwort[];
 }
 
 interface RueckfrageLink {
diff --git a/client/src/features/rueckfragen/rueckfrageSlice.spec.ts b/client/src/features/rueckfragen/rueckfrageSlice.spec.ts
index 05ecf855466407cbe00c3013161f09ccd6e2bae6..49f5fc46760584dac41fe1086f6290078b682415 100644
--- a/client/src/features/rueckfragen/rueckfrageSlice.spec.ts
+++ b/client/src/features/rueckfragen/rueckfrageSlice.spec.ts
@@ -21,7 +21,7 @@
  */
 
 import * as api from "../../api/rueckfragen/rueckfragenAPI";
-import { Message, Rueckfrage, RueckfrageHeader } from "../../api/types";
+import { Antwort, Rueckfrage, RueckfrageHeader } from "../../api/types";
 import { store } from "../../store";
 import {
   clearSelectedRueckfrage,
@@ -167,8 +167,9 @@ describe("rueckfragen reducer tests", () => {
   });
 
   describe("sendMessageThunk tests", () => {
-    const newMessage: Message = {
+    const newMessage: Antwort = {
       id: "2",
+      rueckfrageId: "2",
       postfachId: "sjkdfhlksdfsdf",
       nachrichtEventId: "1",
       message: "Test",
@@ -188,6 +189,7 @@ describe("rueckfragen reducer tests", () => {
     it("should call sendMessage from api", () => {
       const mockMessage = {
         id: "3",
+        rueckfrageId: "3",
         attachments: [],
         date: 12345,
         message: "",
diff --git a/client/src/features/rueckfragen/rueckfrageSlice.ts b/client/src/features/rueckfragen/rueckfrageSlice.ts
index fd48633f61be13194c1e290e12217dd7f2fca9e4..e80e163fb071ff2566d9851cc8eff845ffde5302 100644
--- a/client/src/features/rueckfragen/rueckfrageSlice.ts
+++ b/client/src/features/rueckfragen/rueckfrageSlice.ts
@@ -20,7 +20,7 @@
  * unter der Lizenz sind dem Lizenztext zu entnehmen.
  */
 import { createAsyncThunk, createSlice } from "@reduxjs/toolkit";
-import { Message, Rueckfrage, RueckfrageHeader } from "../../api/types";
+import { Antwort, Rueckfrage, RueckfrageHeader } from "../../api/types";
 import {
   getRueckfrageHeadersOfPostfach,
   getRueckfrageOfPostfach,
@@ -87,7 +87,7 @@ const rueckfragenSlice = createSlice({
   }
 });
 
-function updateRueckfrage(selectedRueckfrage: Rueckfrage, newMessage: Message): Rueckfrage {
+function updateRueckfrage(selectedRueckfrage: Rueckfrage, newMessage: Antwort): Rueckfrage {
   return {
     ...selectedRueckfrage,
     antworten: [...selectedRueckfrage.antworten, newMessage]
@@ -109,7 +109,7 @@ export const fetchRueckfragenThunk = createAsyncThunk(
 
 interface SendMessagePayload {
   id: string;
-  newMessage: Message;
+  newMessage: Antwort;
 }
 
 export const sendMessageThunk = createAsyncThunk(
diff --git a/client/src/lib/rueckfragen/isRueckfrageMarkedNew.spec.ts b/client/src/lib/rueckfragen/isRueckfrageMarkedNew.spec.ts
index dfe62cc01cc8a7c6d39b3b6d32c3a103471f1550..d5aa9f8420262161dbb92f004fa31371b8dc9019 100644
--- a/client/src/lib/rueckfragen/isRueckfrageMarkedNew.spec.ts
+++ b/client/src/lib/rueckfragen/isRueckfrageMarkedNew.spec.ts
@@ -66,7 +66,8 @@ describe("is rueckfrage marked new tests", () => {
         },
         antworten: [
           {
-            id: "1",
+            id: "2",
+            rueckfrageId: "1",
             postfachId: "sjkdfhlksdfsdf",
             nachrichtEventId: "1",
             message: "test message",
diff --git a/client/src/routes/detail/DetailPage.tsx b/client/src/routes/detail/DetailPage.tsx
index c9fe4ac6c81f12161197f6d6e15940356b393436..fe4c5708f2d80fea88f3c241db61c2a133ae36c1 100644
--- a/client/src/routes/detail/DetailPage.tsx
+++ b/client/src/routes/detail/DetailPage.tsx
@@ -35,7 +35,7 @@ import {
   resetRueckfrageHeaderStatus,
   sendMessageThunk
 } from "../../features/rueckfragen/rueckfrageSlice";
-import { Message } from "../../api/types";
+import { Antwort } from "../../api/types";
 import { LoadingPage } from "../../components/Core/Loading Page/LoadingPage";
 import { ErrorPage } from "../../components/Core/Error Page/ErrorPage";
 import { formatTimestampToDate, formatTimestampToDateAndTime } from "../../lib/date";
@@ -143,8 +143,9 @@ export function DetailPage() {
       return; // the message should not be empty or contain only whitespaces
     }
 
-    const newMessage: Message = {
+    const newMessage: Antwort = {
       id: selectedRueckfrage!.nachricht.id,
+      rueckfrageId: selectedRueckfrage!.nachricht.id,
       postfachId: selectedRueckfrage!.nachricht.postfachId,
       nachrichtEventId: selectedRueckfrage!.nachricht.nachrichtEventId,
       message,