Canceling of Order Confirmations in ABAP List-Based PI Sheets 
Use
There are two ways in which you can create an order confirmation from within the PI sheet:
With a data request, by reporting the phase status in a process message
Using a function call that provides direct access to order confirmation
If you have entered a confirmation and you notice that the data confirmed is incorrect, you can cancel the data from within the PI sheet.
For information about how to access the cancel function, see Canceling Order Confirmations Within ABAP List-Based PI Sheets .
Features
To carry out the function, you need to proceed in the same way as when you cancel a confirmation within order maintenance; see How to Cancel a Completion Confirmation .
Note
If the confirmation you want to cancel was entered using a process message, you will find the confirmation number in the destination-specific message log of the corresponding process message; see Process Message Logs .
If when confirming an operation you also activate user statuses, they are not automatically canceled when you cancel the confirmation.