If you delete a collection and want to recover it, go to the trash. Then, hover on the collection you want to restore and select the arrow icon to retrieve it.
Alternatively, open the trash from the status bar in the bottom right corner of Postman.
- If you cannot find your collection, check if it got moved to another workspace. You can see all your collections from your View Profile > Collections.
- If you have lost data, try to unblock yourself with other options in the following article: I lost my data.