diff --git a/src/controllers/product/group-controller.ts b/src/controllers/product/group-controller.ts
index ae3667a..317f4f9 100644
--- a/src/controllers/product/group-controller.ts
+++ b/src/controllers/product/group-controller.ts
@@ -56,7 +56,7 @@ export class ProductGroup extends Controller {
     });
 
     if (!record)
-      throw new HttpError(HttpStatus.NOT_FOUND, "Product group cannot be found.", "data_not_found");
+      throw new HttpError(HttpStatus.NOT_FOUND, "Product group cannot be found.", "productGroupNotFound");
 
     return record;
   }
@@ -100,7 +100,7 @@ export class ProductGroup extends Controller {
     @Path() groupId: string,
   ) {
     if (!(await prisma.productGroup.findUnique({ where: { id: groupId } }))) {
-      throw new HttpError(HttpStatus.NOT_FOUND, "Product group cannot be found.", "data_not_found");
+      throw new HttpError(HttpStatus.NOT_FOUND, "Product group cannot be found.", "productGroupNotFound");
     }
 
     const record = await prisma.productGroup.update({
@@ -116,11 +116,11 @@ export class ProductGroup extends Controller {
     const record = await prisma.productGroup.findFirst({ where: { id: groupId } });
 
     if (!record) {
-      throw new HttpError(HttpStatus.NOT_FOUND, "Product group cannot be found.", "data_not_found");
+      throw new HttpError(HttpStatus.NOT_FOUND, "Product group cannot be found.", "productGroupNotFound");
     }
 
     if (record.status !== Status.CREATED) {
-      throw new HttpError(HttpStatus.FORBIDDEN, "Product group is in used.", "data_in_used");
+      throw new HttpError(HttpStatus.FORBIDDEN, "Product group is in used.", "productGroupInUsed");
     }
 
     return await prisma.productGroup.delete({ where: { id: groupId } });