When i put the barcode to a product card, google says that it is not correct
Google say it should be 8/12/13/14 numbers and it cant include letters
But products i sell sometimes have letter on barcode and different number of numbers
How to do?
If the barcode has a letter, then it's not a GS1 barcode. Only officially registered barcodes can be used.
Here is more info: https://support.google.com/merchants/answer/160161?hl=en