In these cases, the customer may receive instructions (e.g. to complete payment at a physical location, or via EFT), and PayWeb will await confirmation from the financial provider.

When that provider eventually confirms the payment — even hours or days later — PayWeb will automatically post a finalNotify response to the original NOTIFY_URL supplied during the Initiate step.

When Is This Used?

Examples of asynchronous flows include:

EFT or bank transfer payment methods
Cash deposit instructions
Offline eWallet top-ups

Delivery Behaviour

PayWeb sends the same payload format as the standard Notify.
Your system must respond with a plain-text OK to confirm receipt.
Only ports 443 (HTTPS) and 80 (HTTP) are supported.

⚠️
If no OK is received, PayWeb will retry the Notify post two more times at 30-minute intervals before abandoning the attempt.

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