Thanks firstly but it seems that document did not answer my question.
I have found two profile option
OM: Debug Level
OM: Debug Log Directory
I know we can get the debug file for order form and the file name and directory you can noted by check the debug checkbox, but how to get the debug file for the OEOL workflow, what is the file name and directory?
In the workflow there are different activities in OEOL
Some of them are synchonized activities & others are notified/Deffered activities.
Which type of activity that you want to debug ?
if the activity that you are trying to debug is deffered/notified then try as below :
1) Hold the workflow background process & any other programs that are designed to push the line from Notified activity ie Shcedule orders program will push the line in schedule eligible activity.
2) Enabel OM debug level at user level and try to progress the line if it is in notified activity or submit workflow background process program with the current user.
If this is test environment & you know the specific plsql part you want to debug, put OM debug initialization statement in plsql so that you would be able to get the deubg info.
Hope this helps.