Undecember: Delivery Proof Requirement
Last updated: 15 Jul 2026
Method: Auction House
To ensure a secure and verifiable transaction, sellers must follow the steps below and provide a complete video recording as proof of delivery.
The seller must communicate with the buyer to confirm the following:
- Item name
- Price
- Listing duration
This information must exactly match the buyer’s Auction House listing.

The seller may sort the Auction House listings in ascending or descending order to locate the buyer's item.
If there are multiple listings with identical information, the seller must re-confirm with the buyer to identify the correct item.
The seller must clearly show in the video that the item being purchased matches the one listed by the buyer.

At the end of the video, the seller must display the server name as part of the delivery proof.
