Barcode formats
| Type | Format | Description |
|---|---|---|
| GTIN | 8, 12, 13 or 14 digit numeric string | When available, please supply an EAN-13 code. The preferred input format is either EAN-13 (EU) or UPC-A (US), but other formats (if complying to the length requirements) will also work. |
| ISBN | 10 or 13 digit numeric string | Preferred format is ISBN-13. ISBN-10 codes are automatically converted to ISBN-13 before being stored. |
| MPN or style number | Any alphanumeric string with a length between 6 and 32 | Important: for these types of products, it’s required that you specify custom product information for them to appear on Google. Only use this for products that don’t have a GTIN or ISBN. |