Ricky is an online golf equipment merchant who just created a new Google Merchant Center account. When Ricky creates his first data feed, he must add unique product identifiers for his products. Which combination of ‘gtin’, ‘mpn’ and ‘brand’ is valid?
- Both ‘gtin’ and ‘mpn’ must be included
- Two identifiers from ‘gtin’, ‘mpn’ and ‘brand’ must be used
- Only ‘brand’ is required
- Only ‘mpn’ is required
