On the attributes of the product I have a required one, which is returning the response: { "errors": [ "Please select Add Storage (ProductAttribute)" ], "success": false, "message": null, "model": null }
Wath is the model to add the custom property to the body of the call? { "additionalProp1": "string", "additionalProp2": "string", "additionalProp3": "string" }