diff --git a/src/services/api/closing.ts b/src/services/api/closing.ts
index f85e5331..5e6ced3a 100644
--- a/src/services/api/closing.ts
+++ b/src/services/api/closing.ts
@@ -11,6 +11,8 @@ import {
   ClosingProductionData,
 } from '@/types/api/closing';
 import { BaseApiResponse } from '@/types/api/api-general';
+
+// TODO: delete these dummy data later
 import {
   dummyGetAllFetcher,
   dummyGetSingle,
@@ -19,6 +21,7 @@ import {
   dummyGetGeneralInfo,
   dummyGetPerhitunganSapronak,
   dummyGetOverhead,
+  dummyClosingProductionData,
 } from '@/dummy/closing.dummy';
 import { httpClient, httpClientFetcher } from '@/services/http/client';
 import { ClosingSales } from '@/types/api/closing';
@@ -135,7 +138,9 @@ export class ClosingApiService extends BaseApiService<Closing, null, null> {
     }
   }
 
-  async getProductionData(id: number) {
+  async getProductionData(
+    id: number
+  ): Promise<BaseApiResponse<ClosingProductionData> | undefined> {
     try {
       const getProductionDataPath = `${this.basePath}/${id}/production-data`;
       const getProductionDataRes = await httpClient<