2 files scenario design

Hey guys,

I have a simple interface where I need to get 2 files from an FTP directory, and then post it in SAP. Once both files are posted, I need to do an RFC call but only once.

So the flow will be:

FILE1 AND FILE2 --> PI --> FILE1 AND FILE2 IN SAP --> RFC CALL

Is it possible to do this without using BPM? If so, how?

Thanks!