Every single-listing product whose title looks like another one — same model, different pack size. Sorted best match first. Search all products on any row to merge into something not auto-suggested. Nothing is applied until you confirm.

Every pre-existing manual product left over after the clean auto-merges, with its best sheet-product match. Confirm moves its listing(s) onto the sheet product and retires the manual product. Reject just hides the row for this visit — nothing is deactivated on reject (archiving comes later). Multi-listing products are pinned to the top: check those first.

Nothing here is deleted — archiving only ever sets a flag/timestamp, and every action below is reversible with Unarchive. Archiving a product also archives its currently-linked listings; archiving a listing on its own never touches its product. Order and profit history is never affected either way.