You're setting up a product feed in Merchant Center for the first time, and you realize you don't have availability for each product. What will happen if you try to upload the feed in Google Merchant Center?

In Google Merchant Center, the availability attribute is a mandatory field that informs Google whether an item is in stock, out of stock, or available for preorder, which is why availability is a required attribute, so Google's system will disapprove the feed until all required attributes are included. Google enforces these strict data requirements to ensure a high-quality user experience, preventing shoppers from clicking on ads for products they cannot actually purchase. If this specific attribute is missing from your data upload, the system will trigger a critical error at the feed level, halting the processing of your items and preventing them from appearing in any Shopping or Performance Max campaigns until the data is corrected to meet the necessary specifications.