diff --git a/x-pack/plugins/ingest_manager/common/types/rest_spec/agent.ts b/x-pack/plugins/ingest_manager/common/types/rest_spec/agent.ts
index c09320d400481..7bbaf42422bb2 100644
--- a/x-pack/plugins/ingest_manager/common/types/rest_spec/agent.ts
+++ b/x-pack/plugins/ingest_manager/common/types/rest_spec/agent.ts
@@ -79,7 +79,6 @@ export interface PostAgentAcksRequest {
 export interface PostAgentAcksResponse {
   action: string;
   success: boolean;
-  items: AgentAction[];
 }
 
 export interface PostAgentUnenrollRequest {
diff --git a/x-pack/plugins/ingest_manager/server/routes/agent/acks_handlers.test.ts b/x-pack/plugins/ingest_manager/server/routes/agent/acks_handlers.test.ts
index cc75dbcce4445..84923d5c33664 100644
--- a/x-pack/plugins/ingest_manager/server/routes/agent/acks_handlers.test.ts
+++ b/x-pack/plugins/ingest_manager/server/routes/agent/acks_handlers.test.ts
@@ -89,12 +89,6 @@ describe('test acks handlers', () => {
     expect(mockResponse.ok.mock.calls[0][0]?.body as PostAgentAcksResponse).toEqual({
       action: 'acks',
       success: true,
-      items: [
-        {
-          type: 'CONFIG_CHANGE',
-          id: 'action1',
-        },
-      ],
     });
   });
 });
diff --git a/x-pack/plugins/ingest_manager/server/routes/agent/acks_handlers.ts b/x-pack/plugins/ingest_manager/server/routes/agent/acks_handlers.ts
index 81d774fc78b6e..53b677bb1389e 100644
--- a/x-pack/plugins/ingest_manager/server/routes/agent/acks_handlers.ts
+++ b/x-pack/plugins/ingest_manager/server/routes/agent/acks_handlers.ts
@@ -49,7 +49,6 @@ export const postAgentAcksHandlerBuilder = function(
       const body: PostAgentAcksResponse = {
         action: 'acks',
         success: true,
-        items: [...agentActions],
       };
 
       return response.ok({ body });