When registering a product with the API, an error "The item with the same option and option value as an item exists in duplicate" occurs. 1. Please check if there is no duplicate itemName value for each option in the product creation JSON text. 2. Check if the attributeTypeName and attributeValueName values are entered in the attribute array so that they are not duplicated. Related articles Product Creation The error 'duplicated item name exists' occurs when modifying the product with API. Product approval was rejected due to a failure to download a representative or other image. Can I list a single product without options? When modifying a product with API, an error message occurs, 'You cannot delete a product that is on sale'.