Notification to a Position/Job - Function module

Hi friends,

Could someone tell me how to send notification to position.?

This is not an email notification but internal notification that goes to SAP Inbox(transaction : SBWP). I tried using SO_DOCUMENT_SEND_API1 but don't know how to use it for POSITION notification. I was able use above function module to send out notifications to USERId.

Thank you

Nash