在PayPal沙盒中没有得到侦听器的IPN响应

Question

我创建了一个在PayPal沙盒按钮中创建的递归支付按钮。但在付款后从PayPal付款返回测试帐户时，IPN响应不会返回。在检查IPN历史时，它显示IPN消息已经生成。

ipn_POST_data在侦听器中为null。

简单的订阅按钮也是如此。

Answer 1

我得到了答案

我们需要将变量"rm"设置为2。

<input type="hidden" name="rm" value="2">
0 – all shopping cart payments use the GET method
1 – the buyer's browser is redirected to the return URL by using the GET method, but no payment variables are included
2 – the buyer's browser is redirected to the return URL by using the POST method, and all payment variables are included

默认情况下，rm的值为0。

谢谢。。。