Hi ekben,
There are several way to figure out, how to use a BSFN.
1.) If you have Documentation CD, then you can descriptions about several BSFN under Business Functions entry.
2.) Generate BSFN Documentation (GH902/R98ABSFN) and View BSFN Documentation (GH902/P98ABSFN).
3.) Open the BSFN call in ER Designer and there you can check BSFN notes as well as Data Structure Notes or Parameter notes.
4.) Put the object into a project in OMW select Design function and there you can check the attachment.
Tell the truth, many of BSFNs does not have attachment or it is empty or poor. Data Structures, and mainly Parameter Members have very rarely attachment.
5.) Use the Cross Reference Facility to see, where is a BSN used and open these object to examine them, how they use the BSFN.
6.) Open the object with its designer and examine the object itself to figure out, how does it works.
...n+1) Place a post onto JDEList :-D
Hope, this helps a bit.
Regards,
Zoltán
P.S.: just an other advise - place your system configuration into your Signature instead of Bio in your User Profile. Doing so, your sytem info will be attached to the end of your all posts automatically.