Add Work Schedule Approver

Summary

We are wanting to add a new approver using 'Resource', when configuring the 'WorkSchedsApproval' rules.

Content

We are wanting to add a new approver using 'Resource', when configuring the 'WorkSchedsApproval' rules.

Navigate: Setup and Maintenance>Define Approval Management for Human Capital Management>Manage Task Configurations for Human Capital Management
Find WorkSchedsApproval>Assignees (Go to Rule)

Find under WorkSchedulesRuleSet, find 'Then' and under the supervisor rule add a second approver using 'Resource'.
Paste 'GetRepresentative("XXC_PCBP",Task.payload.Worker's Current Representative.result)' under 'User' and validate.
Tried modifying text, and adding from payload.

Refer attached screen shots and documentation. Any ideas on how to configure second approver using resource?