Topsort needs access to product data to run smooth auctions and promoted products. Most importantly, we require productID, catagory, and vendor information of products.
Recommended: Google Product Feed
Given most catalog information is public data, we can receive JSON or CSV file or your standard Product Feed for other shopping ads, such as Google Product Feed and Meta Ads directly.
Catalog API is an alternative method to connect large quantity of products in real-time, we recommend if you are a unique marketplace such as a classified site where a listing is unique and not a standard SKU.