Can a pending order be cancelled automatically?

A pending order generally remains active until you cancel it or its specified expiry time is reached.

However, it may be cancelled or may not execute if:
- The order has an expiry time
- Trading in the instrument is suspended or the instrument expires
- The trading account reaches stop-out
- Free margin is insufficient at the time of execution
- The order price or trading conditions are no longer valid

Check the order status and cancellation reason under the [Trade] and [History] tabs in MT4/MT5.