Has anyone used Billing Extension to trigger a Popup exception message while creating AR transaction

Summary:

Has anyone used Billing Extension to trigger a Popup exception message while creating AR transaction based on Customer "Business Unit Reference account Setup at site level"

Content (required):

Based on Customer BU reference account setup, If a user try to enter transaction for a customer against a BU which is not assigned to a customer BU reference account then an exception message to pop up.

Version (include the version you are using, if applicable):

23A (11.13.23.01.0)

Code Snippet (add any code snippets that support your topic, if applicable):