Checkout reliability
What the failed-payment page should tell the buyer
State the result you can verify for that attempt, give the next action permitted by its payment outcome, and provide a real support route. Distinguish an issuer decline from a provider block, an integration error and unfinished authentication. Do not turn an unknown reason into a claim about insufficient funds, fraud or incorrect card details. If the payment result is not confirmed, say it remains unconfirmed and direct the buyer to support before another attempt; do not promise that no charge or authorization exists. The message should describe the payment attempt without falsely saying the store order was never created.
For: A research-only store owner reviewing the buyer-facing message shown when payment fails within the store's own checkout.
Updated 2026-10-01