Warnings VS. Errors
When you upload your Product Catalog feed for the first time, you may receive several warnings or errors.
Warnings are simply recommendations for things that you may want to fix to improve the quality of your ads. It can be safely ignored. Warnings are indicated by a yellow triangle icon.
Errors on the other hand, indicate that your Product Catalog feed was not processed and you need to fit it before proceeding. Errors are indicated by a red octagon icon.
Both the warning and error message will indicate what you need to check and fix. If you have trouble resolving the issue, please visit our knowledge base > troubleshooting section for articles on common errors that our users have been experiencing. Otherwise, it is best advised that you reach out to Facebook for assistance.