The delivery that emailed the customer but never updated the order
01 // OBSERVED SYMPTOM
An admin set the eSIM details and marked an order delivered. The customer received the delivery email, but the order stayed in its previous state and the payment still showed pending.
02 // ROOT CAUSE DIAGNOSIS
The update that advanced the order reported its failure in the returned result object rather than by throwing, and the code did not read that value. The write was not applying while the surrounding flow, including the email, proceeded as though it had.
03 // ARCHITECTURAL FIX
The delivery path now checks the returned error and stops on failure, and on success cascades any pending payment to success so the history matches the verified state. Reading the returned error was chosen over a blanket try/catch because the client signals this class of failure through the result value, not an exception.





