How to show customer since in collections screen

How to show customer since in collections screen?

The instructions in User's Manual is below; however, we are not able to populate the 'Customer Since' field via page personalization.

Customer Since

The year since customer transactions began. Note: This field displays the date of the customer's first purchase stored in the Year Established field on the Oracle Receivables Customer page. The Receivables user must enable this field by adding the field through page personalization and then populate it in order for Advanced Collections to show a date.