BAPI's in workflow

[Aliana Portugal, Ignasi]

Hi,
 
2 questions:
 
1) Does anybody know what are the BAPI's used for in workflow and what's de
difference between a method based on a BAPI and a method that isn't?
 
2) Which one is the table that contains all the inbox documents (the
workflow table and the office table)?
 
Thanks.
 
Ignasi Aliana (PWC)  -  SIE2000
Centro de Soporte de WF / CA
ialiana at fecsa.es / 93 6002490