troubleshoot the cause of the ads error fprunx001.

hi all,

from help.sap.com i found the name of the function module fp_run_last_ads_errstr

which returns a string containing the cause of the error...

problem is this fm should be called after the pdf generated function module...

since i am using standard driver program sapmf06p so i will not be able to call this function module in the driver program..

can i call this fm as a standalone function module....will it work..please help..