Offer Approval Workflow - Representative

Summary

How to set the Offer Approval Workflow using "Representative" user, in

Content

Hi,

I want to set an approval workflow for the job offer, in order to send the approval notification to different users basing on the legal employer indicated in the offer. So, I created a responsibility type "Offer approver" and assigned to the approvers an area of responsibility, specifying, in the scope of responsibility, the legal employer. 

Then, in the Transaction Console > Approval rules > Approve job offer, I configured the approval rule setting the condition (Proposed Assignment Details.Legal Employer == "Legal employer name") and choosing as approver user the "Representative" option, specifying the responsibility type. In the field "Representative of", I chose the option "Candidate's proposed representative", but, when I click on "Save", the following error is displayed :"RUL-05717: The identifier "Task.payload.Candidate's proposed Representative" is not valid here".