"Task definition not found"

[Thad Gorbal]

Hi all:
 
In CRM 3.0, my workflow is triggered by 'bus1006.changed'. I use the BP
transaction (business partner maintenance) to raise that event.
 
The trouble is that often I receive an error message "Task definition not
found" even though the link does exist and is active (according to SWETYPV
and "Triggering events" tab). Obviously wf does not start.
 
Other times, even when the link on 'Triggering events' tab is inactive, the
wf definition is found and the wf does what it is supposed to do.
 
- Can anyone offer any hint why that might be happening?
 
Also, is there any error message repository available somewhere, so that
one could use it for debugging purposes.   When I am getting the "Task
definition not found", it comes with WD 472 code.  I have not been able to
find it anywhere.
 
Thank you in advance,
Thad Gorbal
Voyager II Project