Could you share the tracer file of your use case for our further analysis along with your configuration screenshots. Meanwhile i found a bug in the ToWorkParty activity functionality as explained in below article,
NaveenM4274, did you happen to solve the issue you were describing in this thread? I'm trying to use this "unavailability feature" and it seems that PRPC is not routing assignments into a substitute User that I picked from the list of users.
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