My merchant center account is showing an error - Limited performance due to missing value gtin. How can I solve this?
It is always a good idea to have the correct format of GTIN that is allowed in the area of sale.
You can also leave the GTIN field empty if you do not have one. If the GTIN field is empty, AdNabu will send the GTIN as a null value. This will make sure your products are not disapproved because of GTIN.
Some products are only shown in ads by Google if they have accurate GTINs. To solve this error, kindly update the Barcode field of the product in Shopify.