Execute BAPI_DOCUMENT_CREATE2 in background mode

Hi,

I need to create a DMS document with PDF attachment from Application Server in background mode.

I'm calling the function BAPI_DOCUMENT_CREATE2 in an external application, but it stopped when I call function RFC_START_PROGRAM destination BACK. What does mean "destination BACK"?

Is it possible?

Are there any other ways to solve this issue?

Thanks in advance,