Message problem in BDC

Hi All,

I am doing a bdc program inside RFC-FM.in which i need to do a posting in FI and return the document number via the export parameter of the RFC-FM.when the function module is tested in

foreground its giving me the document number via the success message but while testing in background mode the document number is not captured.I think there is some problem withe message capturing in background mode.

can anybody advice.....

Regards,

Prajith