Thanks, @MoiraGoggin - I read the document. Unfortunately, despite providing the customer a copy at least 2x I doubt anyone there read it. Ultimately, once the credit limit vs aging bucket issue is resolved I think the customer will have another issue of how to manage that via security.
I think the ideal way to treat this would be on a customer by customer basis so that if a customer is an exception they have a field in their customer maintenance credit screen for ""Aging category balance exceeds amount"" where a larger amount could be entered for the specific customer. If nothing were in the field it could default to the Sage amounts in setup.