How to Cancel a Completion Confirmation 
If you want to cancel a confirmation, you must first specify which completion confirmations you want to cancel:
Proceed as follows:
– By entering the completion confirmation number or the order number and the phase number, you clearly identify the phase.
– If you enter only the order number, the system branches to a screen with the corresponding phases/operations and their confirmations. Select the phase in question or the confirmation to be canceled.
– If several confirmations exist for the phase, the system branches to a screen which lists the confirmations. Mark the completion confirmation you want to cancel. Branch to the corresponding detail screen.
– If only one confirmation exists for the phase, the system branches directly to the detail screen of the confirmation.

To reverse the cancellation of a confirmation you must manually reenter a confirmation.