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Question:

Why some refunds do not trigger asynchronous notifications?

Answer:

1- Synchronous refunds do not trigger asynchronous notifications.

2- Parameter notify_url is not passed in the refund request, so no asynchronous notification can be sent.

3- Refunds initiated through Global Open Platform do not trigger asynchronous notifications.

问题：

为什么有的退款请求没有异步通知？

原因：

1、同步退款不触发异步通知。

2、退款请求未传notify_url。

3、通过global后台发起的退款不触发异步通知。