Need consultancy on developing a program to update PA40 in background run

I’m developing a batch input program to perform PA40 for Action Type 21 (Change EE Situation) in background mode (DIALOG_MODE = ‘0’). Several infotypes will need to be processed and it’s very likely to encounter messages (W, I, E) embedded in the MP* modules. Since these messages will interrupt the background run, is there a way to avoid this kind of message interruption? Is there any suggestion to develop a batch input program for PA40 and make it possible to update all infotypes successfully in background mode? Is there a FM/BADI to help on this?