Workforce compensation planning for non worker population

Summary:

We would like to pull in some non-workers into a compensation plan (not contingent workers). I am unable to bring them to the comp plan using eligibility rules. I am unable to manually add them to the plan using the Reprocess/Add New Plan button in Administer Workers. I am unable to add them using the Start Process selecting individual person or manager hierarchy of the non worker.

Is there a way we can bring over non workers to the comp plan.

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