There are a couple of ways to keep records of an auction, and using the auction ID is one of the most reliable methods. Here's how it works:
Use this link as a base:
https://www.tibia.com/charactertrade/?subtopic=currentcharactertrades&page=details&auctionid=
After the auctionid=, paste the specific auction ID. It will look something like this:
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By doing this, you can locate the exact auction you're interested in. If you don’t trust links (which is a valid concern), here’s another way:
Navigate to any auction on Tibia.com.
Erase everything after the auctionid= in the URL.
Replace it with the auction ID you’ve saved.
This method ensures you can always find the auction without relying on someone else’s links.