generated: '2026-07-24'
method: searched
source: openapi/till-payments-gateway.yml, openapi/till-payments-direct-pci.yml
docs: https://gateway.tillpayments.com/documentation/apiv3
spec_type: Webhooks
summary: >-
  Till Payments delivers transaction outcomes through asynchronous status
  notifications (callbacks) rather than a subscription webhook console. Each
  transaction request may carry a merchant-supplied callbackUrl; the gateway POSTs
  the final transaction status to that URL once the transaction reaches a
  definitive state. The docs are explicit that the callback — not the browser
  back-redirect — is the source of truth for the final result.
delivery:
  mechanism: per-transaction callbackUrl (HTTP POST)
  configured_via: callbackUrl field on the transaction request body
  reliability_note: >-
    "For the final result you should only trust the notification, NOT the back
    redirection." Notifications are sent for REDIRECT and PENDING flows once a
    final state is reached, and for FINISHED / ERROR outcomes.
  payload: >-
    The notification body mirrors the transaction response
    (components.schemas.TransactionResponse): success, uuid, purchaseId,
    returnType, paymentMethod, returnData, riskCheckData, errors[], etc.
events:
  - name: transaction.status.success
    trigger: A transaction reaches a successful final state (returnType FINISHED).
    channel: merchant callbackUrl
  - name: transaction.status.error
    trigger: A transaction fails or is declined (returnType ERROR; see errors[]).
    channel: merchant callbackUrl
  - name: transaction.status.pending-final
    trigger: A previously PENDING or REDIRECT transaction reaches its final state.
    channel: merchant callbackUrl
  - name: account.updater.notification
    trigger: Account Updater result notification (updated card credentials on file).
    channel: merchant callbackUrl
  - name: network.token.notification
    trigger: Network Token result notification.
    channel: merchant callbackUrl
verification:
  approach: Fetch authoritative status via transactionStatusByUuid or transactionStatusByMerchantTransactionId; optional HMAC-SHA512 request signing applies to the notification integrity model.
asyncapi_spec: null
note: >-
  No downloadable AsyncAPI document is published; this is a derived webhook/event
  catalog from the V3 reference and OpenAPI. Emitted as type Webhooks (event
  surface present) — not a fabricated AsyncAPI spec.