What are the are the requirements for the file format, required and optional data fields, file name, and file transfer protocol for product feed files?
If you are creating a Facebook only feed (not using Google GMC feed). The file format has to abide Facebook's format and have the required feed columns: https://developers.facebook.com/docs/marketing-api/dynamic-product-ads/product-catalog#feed-format
Please contact your AMO Account Manager for further instructions as the feed file has to be uploaded to AMO first (to apply AMO tracking).
DPA's are relatively new, so here is the link on How to set up the profuct feeds guide: https://www.facebook.com/business/help/1397294963910848.