> For the complete documentation index, see [llms.txt](https://docs.usdd.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.usdd.io/developers/liquidation-and-auction.md).

# Liquidation & Auction

Liquidation is a critical process in the USDD system that ensures the stability and solvency of the protocol. When a user's collateralized debt position (CDP) becomes undercollateralized (i.e., the value of collateral falls below the required threshold), the liquidation mechanism is triggered to maintain the integrity of the system.