There is no attribute to be able to set the boolean for Identifier Exists attribute option. This is useful for products without GTINs, MPNs & Brands (You can still declare a Brand and have identifier exists as false though, which sets GTINs, MPNs to false).
https://support.google.com/merchants/answer/6324478?sjid=4170186885114842624-NC#zippy=products-without-gtins-mpns-brands
Take a look under:
Examples
– Products without GTINs, MPNs & brands
This is used for handmade or one of a kind goods, and needs to have a Boolean value (true, false) in order to bypass the GTIN, MPN attributes (setting [identifier_exists] = false).
From Google Merchant Center Help:
How to fix your issue
For each product, provide the appropriate unique product identifier values (GTIN [gtin], MPN [mpn], and brand [brand]) based on our UPI guidelines. You may also need to add a value for the identifier exists [identifier_exists] attribute.
If there is an option for setting [identifier_exists] attribute, could you please specify where to find and use it??
Closed
Last updated: May 11, 2026
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Hi there,
Thank you for your suggestion!
We noticed that there is a similar request about this, which currently has more votes: https://woocommerce.com/feature-request/add-the-complete-list-of-google-api-attributes/. To better prioritize requests, we aim to keep 1 request open per feature. That’s why I will close this one. I encourage you to upvote the above request instead.