The Time-In-Force (TIF) for Market and Trigger orders is Fill-Or-Kill (FOK). FOK orders must be either fully executed or fully canceled. During market volatility, orders may be canceled if they cannot be fully executed within the max slippage threshold.
Example: Trader A has an open position for 10 contracts of BTCUSDT.PERP. If only 6 contracts can be fulfilled, the entire order will be canceled.