We're also continuing to investigate latency affecting search results, active auction lists, posting auctions, and successful sales and purchases on the gold auction house, and hope to have all transactions running smoothly as soon as possible. Please note that while these issues may cause a temporary delay in having purchased items appear in your Completed tab, your items have not been lost. If you do not see your purchased items immediately, please wait and try again later. This also applies if you are experiencing difficulty transferring gold from your Completed tab to your character’s stash. Though your sales and purchases may not appear in your auction log, those transactions have still been recorded and should process within 24 hours.
Auction House Error 31073
Players will sometimes receive "Error 31073" when attempting a transaction on the auction house. This is an intentional measure to help improve auction house stability by throttling the number of auctions that can be created at any given time. To that end we plan on updating the messaging that accompanies this error in a future patch to better describe why players are receiving it. If you receive this error message when attempting a transaction you should wait a few moments and try again. While we understand this is an inconvenience, our goal is to ensure a more stable auction house experience for everyone.