Invoice Rejected as Duplicate but Unpaid Email Template

Use this page when AP has formally rejected the invoice as a duplicate, but your team still has not received payment for the actual underlying balance. This is distinct from a duplicate-flag page because the rejection has already happened and now creates a more serious collections and documentation problem. The payer's system may have closed the path before your team could prove that the invoice still represents an unpaid obligation. That means the next message needs to be sharper: it must challenge the rejection, ask what document the invoice was supposedly duplicating, and force clarity on how the payer expects the real balance to be settled. The outcome you want is to reopen the invoice path or get a clear alternative route to payment before the claim gets buried under an incorrect duplicate decision. It is commercially strong because the user is already facing a high-friction AP rejection that can directly delay or deny cash if not handled properly.