If the server to which the webhook is notified cannot be notified due to network failure or other reasons, depending on the type of webhook, retry attempts will be performed as follows.
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The response timeout (2.0 s) or error will be retried up to 3 times with a delay of 100ms between them. |
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The response timeout (1.5 s) or error will be retried up to 10 times with a delay of 500ms between them. |
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The response timeout (1.5 s) |
If an error occurs even after the maximum number of retries, the webhook will not be sent. Therefore, full notification cannot be guaranteed: if the webhook is not delivered, the status of the transaction can also be checked via the Settlement Reference API.
In addition, if an error occurs during settlement (e.g. an error when multiple payments of the same amount are executed in a short period of time), the webhook will not be notified.
Note: Webhook notifications are not provided while PayPay is under maintenance.