diff --git a/prisma/migrations/20240906041918_add_registered_branch_to_product_group/migration.sql b/prisma/migrations/20240906041918_add_registered_branch_to_product_group/migration.sql
new file mode 100644
index 0000000..9b30583
--- /dev/null
+++ b/prisma/migrations/20240906041918_add_registered_branch_to_product_group/migration.sql
@@ -0,0 +1,20 @@
+/*
+  Warnings:
+
+  - Made the column `customerBranchId` on table `Employee` required. This step will fail if there are existing NULL values in that column.
+
+*/
+-- DropForeignKey
+ALTER TABLE "Employee" DROP CONSTRAINT "Employee_customerBranchId_fkey";
+
+-- AlterTable
+ALTER TABLE "Employee" ALTER COLUMN "customerBranchId" SET NOT NULL;
+
+-- AlterTable
+ALTER TABLE "ProductGroup" ADD COLUMN     "registeredBranchId" TEXT;
+
+-- AddForeignKey
+ALTER TABLE "Employee" ADD CONSTRAINT "Employee_customerBranchId_fkey" FOREIGN KEY ("customerBranchId") REFERENCES "CustomerBranch"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "ProductGroup" ADD CONSTRAINT "ProductGroup_registeredBranchId_fkey" FOREIGN KEY ("registeredBranchId") REFERENCES "Branch"("id") ON DELETE SET NULL ON UPDATE CASCADE;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index dcbf8a2..10a9395 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -239,6 +239,7 @@ model Branch {
   productRegistration  Product[]
   serviceRegistration  Service[]
   customerRegistration Customer[]
+  ProductGroup         ProductGroup[]
 }
 
 model BranchBank {
@@ -533,8 +534,8 @@ model Employee {
   entryDate         DateTime? @db.Date
   workerStatus      String?
 
-  customerBranch   CustomerBranch? @relation(fields: [customerBranchId], references: [id], onDelete: SetNull)
-  customerBranchId String?
+  customerBranch   CustomerBranch @relation(fields: [customerBranchId], references: [id], onDelete: Cascade)
+  customerBranchId String
 
   status      Status @default(CREATED)
   statusOrder Int    @default(0)
@@ -657,6 +658,9 @@ model ProductGroup {
   status      Status @default(CREATED)
   statusOrder Int    @default(0)
 
+  registeredBranchId String?
+  registeredBranch   Branch? @relation(fields: [registeredBranchId], references: [id])
+
   createdAt       DateTime @default(now())
   createdBy       User?    @relation(name: "ProductGroupCreatedByUser", fields: [createdByUserId], references: [id], onDelete: SetNull)
   createdByUserId String?