check output of rule before users get workitem

Hello there,

I implemented a purchase order release workflow using userexit M06E0005.

All works fine, userexit gives correct user back to workflow task TS20000166 - using rule 20000027.

Now my problem: I want to get hold of the possible user who is the result of above verification BEFORE he gets the workitem to process the purchase order. The reason is, that I need to check his authorisations in OM first.

I ascertain by userexit M06E0005, that only one user is given back to WF-rule.

If you have any ideas - I would be thankful.

Maybe a task which accepts rule 20000027 and offers the possible agents? I can't find one.

Best regards,

Birgit