If you are getting below error on workflow .   Stopped (error): X++ Exception: Could not find user at SysWorkflowDueDateProvider-resolve SysWorkflowDueDateProvider-resolveDueDate   Then you need to check following things.   1. Check workflow configuration is user assigned for workflow approval elements .  2. Check user relation form if there is not employee assigned then you need to assign employee on user relation form.  
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