diff --git a/src/controllers/product/product-controller.ts b/src/controllers/product/product-controller.ts
index 59e550e..aabdbc5 100644
--- a/src/controllers/product/product-controller.ts
+++ b/src/controllers/product/product-controller.ts
@@ -97,7 +97,7 @@ export class ProductController extends Controller {
     });
 
     if (!record) {
-      throw new HttpError(HttpStatus.NOT_FOUND, "Product cannot be found.", "data_not_found");
+      throw new HttpError(HttpStatus.NOT_FOUND, "Product cannot be found.", "productNotFound");
     }
 
     return Object.assign(record, {
@@ -156,7 +156,7 @@ export class ProductController extends Controller {
     @Path() productId: string,
   ) {
     if (!(await prisma.product.findUnique({ where: { id: productId } }))) {
-      throw new HttpError(HttpStatus.NOT_FOUND, "Product cannot be found.", "data_not_found");
+      throw new HttpError(HttpStatus.NOT_FOUND, "Product cannot be found.", "productNotFound");
     }
 
     const record = await prisma.product.update({
@@ -182,11 +182,11 @@ export class ProductController extends Controller {
     const record = await prisma.product.findFirst({ where: { id: productId } });
 
     if (!record) {
-      throw new HttpError(HttpStatus.NOT_FOUND, "Product cannot be found.", "data_not_found");
+      throw new HttpError(HttpStatus.NOT_FOUND, "Product cannot be found.", "productNotFound");
     }
 
     if (record.status !== Status.CREATED) {
-      throw new HttpError(HttpStatus.FORBIDDEN, "Product is in used.", "data_in_used");
+      throw new HttpError(HttpStatus.FORBIDDEN, "Product is in used.", "productInUsed");
     }
 
     return await prisma.product.delete({ where: { id: productId } });