diff --git a/src/datasources/product-api.ts b/src/datasources/product-api.ts
index b9c9ace..833e1ef 100644
--- a/src/datasources/product-api.ts
+++ b/src/datasources/product-api.ts
@@ -12,7 +12,6 @@ import {
   Orientation,
   ProductsFilterInput,
   ProductInfoInput,
-  ProductBlacklistInput,
   ProductBlacklistMarketInput,
   ProductMaterials,
   ProductSizeTypes,
@@ -191,7 +190,7 @@ export class ProductAPI extends BaseSQLDataSource {
           path: info.path,
           browsable: info.browsable ? 1 : 0,
           visible: info.visible ? 1 : 0,
-          designerid: info.designerId,
+          designerid: info.designerId ?? null,
           ref1: info.ref1,
           ref2: info.ref2,
           ref3: info.ref3,
diff --git a/src/schema.graphql b/src/schema.graphql
index 5caee89..f530a09 100644
--- a/src/schema.graphql
+++ b/src/schema.graphql
@@ -383,7 +383,7 @@ input ProductInfoInput {
   ref1: String!
   ref2: String!
   ref3: String!
-  designerId: Int!
+  designerId: Int
   browsable: Boolean!
   visible: Boolean!
   printFileWidth: Int!
diff --git a/src/types/product-types.ts b/src/types/product-types.ts
index acabffb..03ea689 100644
--- a/src/types/product-types.ts
+++ b/src/types/product-types.ts
@@ -1,4 +1,4 @@
-import { PaginationInput, PaginationResult } from './types';
+import { Maybe, PaginationInput, PaginationResult } from './types';
 
 // Mutation inputs
 export interface ProductInfoInput {
@@ -10,7 +10,7 @@ export interface ProductInfoInput {
   ref1: string;
   ref2: string;
   ref3: string;
-  designerId: number;
+  designerId: Maybe<number>;
   browsable: boolean;
   visible: boolean;
   printFileWidth: number;