AR Deposit Billing Invoice GL Control Code

Our CFO wants any Deposit Billing Invoice to debit a different AR Account. If there is a deposit billing credit memo it should credit that same AR Account. The reason being he wants to be able to separate AR aging for Deposits from shipment invoices or other misc. invoices when running the Aging Report. We would create a separate GL Account for Deposits Not paid.

Has anyone else done this through a Posting Rule or BPM?

You could try modifying the GL Control Type, add a new Account Context like “Deposit Billing”.
Populate the account for that context in any existing GL Controls of that type.
Modify the posting rule so that for DEP invoices, it takes the account from this “Deposit Billing” context.