Where can I preview my feeds?
How to preview my feeds if it has expected structure?
What should I create next - Collections?
How to preview my feeds if it has expected structure?
What should I create next - Collections?
If you remove the feed, it does not automatically remove all the products. You have to delete all the products from your catalog, then, after all got deleted, upload the new feed.
You can use this endpoint:
https://mc.adobe.io/{{TENANT_ID}}/target/recs/entities?ids={{ENTITY_ID}}&environment={{ENVIRONMENT_ID}}

Make sure to introduce the ID and/or the environment. If you don´t do it, it will delete all the products from your environment. I guess that it is what you want, so you can introduce only the environment so it will delete all the products.
It may take some days to delete all of the old products.
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