Production, Terminal API with a paired Square Terminal, webhooks subscribed: device.code.paired, terminal.checkout.created, terminal.checkout.updated, refund.updated. API version 2023-03-15.
On 9/12/2026 around 8:03 PM Eastern a customer paid with an international card. The contactless tap was declined and the checkout was cancelled. Our POS created a new checkout, the customer inserted the same card, and it was approved. Square captured the payment, but no COMPLETED event was ever sent for the second checkout. The Developer Dashboard webhook log shows no attempt at all, not a failed delivery.
Checkout NADTUiCsxpXanVCE
20:03:24 terminal.checkout.created PENDING
20:03:25 terminal.checkout.updated IN_PROGRESS
20:03:35 terminal.checkout.updated CANCELED, cancel_reason BUYER_CANCELED
Checkout jHHO6FYTwQA5JYCE
20:03:39 terminal.checkout.created PENDING
20:03:40 terminal.checkout.updated IN_PROGRESS
(nothing further)
Get Terminal Checkout on jHHO6FYTwQA5JYCE now returns status: COMPLETED with payment ID Populated. Other checkouts that day received their COMPLETED events normally, with 200 responses from our endpoint.
Could you check why no update was published for this COMPLETED transition, and whether this is a known condition, for example with a checkout created right after a cancelled one on the same device, or with international cards? We want to know if this is a one-off.
Merchant id available on request.