Store and team management

Quick answer

Do not mix sandbox and live environments. A payment is processed only after the server verifies the PayTR callback and signature; a browser redirect alone is not proof.

Steps to follow

1. For a failed payment, check the transaction and never charge twice. Track the callback; use the transaction number for refunds or invoices and never request card details.
2. For a failed payment, check the transaction and never charge twice. Track the callback; use the transaction number for refunds or invoices and never request card details.

Safe payment and invoice

For a failed payment, check the transaction and never charge twice. Track the callback; use the transaction number for refunds or invoices and never request card details.