Auto-Tag Balance Dues and Supplementals

Many TMS's need to handle additional invoices (Balance Dues and/or Supplementals) differently from the original invoices. Today in Navix, we use the "Invoice Type" field to denote "Invoice", "Balance Due", or "Supplemental", but we require users to choose this value manually (and they rarely ever do).

To solve this problem- the idea is that when we detect an additional invoice on an order, default the Invoice Type to Balance Due and flag that in the UI, so a user can change it if needed, but default to that value.

Additionally, we don't currently send invoice type with the audit results endpoint. This is problematic as every audit is treated the same. If someone approves a supplemental or balance due invoice the charges would need to be added to the TMS differently than if they are approving the first invoice. The request is to just add an additional field to this endpoint 'Invoice Type'.