Customer Exits Order Confirmation CORF
You can use this enhancement to carry out your own checks when you download PP operations. If you do not want the system to transfer the operation to the subsystem during the download, you can raise exception OPERATION_NOT_RELEVANT.
The data on the order, sequence, operation, and sub-operation is available for the check.
EXIT_SAPLPPC0_101: Check Additional Conditions for PDC Download of Operation Data