diff --git a/src/controllers/04-service-controller.ts b/src/controllers/04-service-controller.ts
index aa32e97..af41446 100644
--- a/src/controllers/04-service-controller.ts
+++ b/src/controllers/04-service-controller.ts
@@ -242,12 +242,14 @@ export class ServiceController extends Controller {
 
     const record = await prisma.$transaction(
       async (tx) => {
+        const branch = productGroup.registeredBranch;
+        const company = (branch.headOffice || branch).code;
         const last = await tx.runningNo.upsert({
           where: {
-            key: `SERVICE_${body.code.toLocaleUpperCase()}`,
+            key: `SERVICE_${company}_${body.code.toLocaleUpperCase()}`,
           },
           create: {
-            key: `SERVICE_${body.code.toLocaleUpperCase()}`,
+            key: `SERVICE_${company}_${body.code.toLocaleUpperCase()}`,
             value: 1,
           },
           update: { value: { increment: 1 } },