I just had a trade where the other member never ever marked the trade as "Package Sent" even though he had sent them out. I just received the cards and when I did, I marked the trade as "Package Received". The cards which were wants in some of my collections (fortunately not many) did now show up in my Main Collection as having been acquired but the card that was in the collection the original Want was, remained in that collection shown as "In-Transaction". When I did the resorting of the cards received, moving them in the collection I wanted them in, the colelction now showed 1 card in collection (blue), 1 card In-Transaction (grey), and no Want.
The cards I did send him, myself having followed the proper steps in the Transaction Manager, have been removed from my Traders.
Just some info from an inadvertent test for those who were wondering. And no, I don't care to do more tests. PLEASE follow the steps in the Transaction Manager.
Bruno
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Check my Profile page to see my 2023 Goals and my Lists of sets near completion (5 cards or less) or sets getting close (less than 100 cards missing and 75% complete).
https://www.tcdb.com/Forum.cfm/Page/B/ID/0/?MODE=VIEW&ThreadID=25745&C=0