diff --git a/prisma/migrations/20241105013134_add_detail_field/migration.sql b/prisma/migrations/20241105013134_add_detail_field/migration.sql
new file mode 100644
index 0000000..15819e3
--- /dev/null
+++ b/prisma/migrations/20241105013134_add_detail_field/migration.sql
@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE "WorkflowTemplateStep" ADD COLUMN     "detail" TEXT;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index e5517ea..2ec15df 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -946,6 +946,7 @@ model WorkflowTemplateStep {
 
   order             Int
   name              String
+  detail            String?
   type              String?
   value             WorkflowTemplateStepValue[] // NOTE: For enum or options type
   responsiblePerson WorkflowTemplateStepUser[]
diff --git a/src/controllers/04-flow-template-controller.ts b/src/controllers/04-flow-template-controller.ts
index 29260f5..ce7e1b4 100644
--- a/src/controllers/04-flow-template-controller.ts
+++ b/src/controllers/04-flow-template-controller.ts
@@ -31,6 +31,7 @@ type WorkflowPayload = {
   step: {
     id?: string;
     name: string;
+    detail?: string;
     type?: string;
     value?: string[];
     responsiblePersonId?: string[];
@@ -112,6 +113,32 @@ export class FlowTemplateController extends Controller {
 
   @Post()
   async createFlowTemplate(@Request() req: RequestWithUser, @Body() body: WorkflowPayload) {
+    const where = {
+      OR: [
+        { name: { contains: body.name } },
+        {
+          step: {
+            some: { name: { contains: body.name } },
+          },
+        },
+      ],
+      AND: {
+        registeredBranch: {
+          OR: permissionCondCompany(req.user),
+        },
+      },
+    } satisfies Prisma.WorkflowTemplateWhereInput;
+
+    const exists = await prisma.workflowTemplate.findFirst({ where });
+
+    if (exists) {
+      throw new HttpError(
+        HttpStatus.BAD_REQUEST,
+        "Workflow template with this name already exists",
+        "sameNameExists",
+      );
+    }
+
     const userAffiliatedBranch = await prisma.branch.findFirst({
       include: branchRelationPermInclude(req.user),
       where: body.registeredBranchId