paytechIntegrate card payments via paytech: DEPOSIT and REFUND, BASIC_CARD, hosted payment page.paytechAdd refunds to our existing paytech deposit flow.paytechReview our paytech integration for missed webhooks and unsafe order-state mapping.

Integrate a merchant application with the PSP payment API (deposits, withdrawals, refunds, captures/voids, card tokens, recurring/subscriptions, hosted fields, Apple Pay / Google Pay), implement webhook handling and safe payment-state to order-state mapping, and verify the flow against the PSP sandbox.