E-invoice gateways and the silent currency default

Many Japanese companies now receive e-invoices through a gateway that drops data into the core invoice processing application. When the feed pauses, operators sometimes re-key lines. If the application defaults currency to yen or tax category to a domestic rate, the re-keyed invoice can look “complete” while disagreeing with the purchase order.

An application audit traces a handful of import invoices from gateway receipt through matching. We look for silent defaults, missing broker references, and whether exceptions surface on a list someone actually reads.

If your gateway and core application are maintained by different vendors, write down who owns each failure mode. Clarity here prevents the familiar loop where each side assumes the other caught the blank field.