diff --git a/src/controllers/04-service-controller.ts b/src/controllers/04-service-controller.ts
index c8b5b90..e36bf08 100644
--- a/src/controllers/04-service-controller.ts
+++ b/src/controllers/04-service-controller.ts
@@ -55,10 +55,20 @@ type ServiceCreate = {
     [key: string]: any;
   };
   status?: Status;
+  /**
+   * @isInt
+   */
+  installments?: number;
   workflowId?: string;
   work?: {
     name: string;
-    productId: string[];
+    product: {
+      id: string;
+      /**
+       * @isInt
+       */
+      installmentNo?: number;
+    }[];
     attributes?: { [key: string]: any };
   }[];
   shared?: boolean;
@@ -72,11 +82,21 @@ type ServiceUpdate = {
   attributes?: {
     [key: string]: any;
   };
+  /*
+   * @isInt
+   */
+  installments?: number;
   status?: "ACTIVE" | "INACTIVE";
   workflowId?: string;
   work?: {
     name: string;
-    productId: string[];
+    product: {
+      id: string;
+      /*
+       * @isInt
+       */
+      installmentNo?: number;
+    }[];
     attributes?: { [key: string]: any };
   }[];
   shared?: boolean;
@@ -303,8 +323,9 @@ export class ServiceController extends Controller {
                 order: wIdx + 1,
                 attributes: w.attributes,
                 productOnWork: {
-                  create: w.productId.map((p, pIdx) => ({
-                    productId: p,
+                  create: w.product.map((p, pIdx) => ({
+                    productId: p.id,
+                    installmentNo: p.installmentNo,
                     order: pIdx + 1,
                   })),
                 },
@@ -385,8 +406,9 @@ export class ServiceController extends Controller {
               order: wIdx + 1,
               attributes: w.attributes,
               productOnWork: {
-                create: w.productId.map((p, pIdx) => ({
-                  productId: p,
+                create: w.product.map((p, pIdx) => ({
+                  productId: p.id,
+                  installmentNo: p.installmentNo,
                   order: pIdx + 1,
                 })),
               },