Google Product Category (GPC) is one of the key pieces of information Meta uses to target the right products from your dynamic ads to the right audience(s).
The more specific you are, the better a job Meta can do with matching potential buyers to your products. This is why it’s important to send as much additional information (in addition to Google Product Category, these can include details such as color, brand, size, availability, material, MPN, etc.) to Meta in your catalog as possible.
GPC is critical for your catalog ads to perform as it helps Meta understand which product a shopper is in-market for, which products to show to which shoppers from your catalog, and which customers to show each product to.
