Token in Alert Composer for Person Number or Assignment Number

This is NOT for using Journeys, this is for the PPM (Personal Payment Method) when an employee adjusts their payment method in the system they get an alert. This alert also goes to HR inbox, but we want to add person number or assignment number to that alert, so HR knows what employee the alert is referring to. We have name in there, and work email, but can't seem to get the token for person number or assignment number to work.

Using the expression builder - I have values for Function and Returning, but 'Using Token' is blank.

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