BackMarket Deactivated Listings

Both BackMarket and sellers can archive/deactivate listings they don't want to sell anymore.  BackMarket does not offer the possibility to delete as there could be many objects attached to the said listing (previous orders, customer claims) so the listing is deactivated.

To reactivate, you need to use their portal (Back Office) and search for the listings and reactivate.  Backmarket does not offer an API endpoint to reactivate (as of Jan 2025).