IPN 的 Paypal 用户名和密码
通过 paypal 网站支付标准订阅。
大家好，我知道用户名和密码是由Paypal端处理后生成的，我们也可以设置IPN。
那么客户是否可以使用该用户名和密码访问订阅并对已购买的订阅采取取消和升级等操作？
我知道密码是经过哈希处理的，那么如果客户可以使用这些凭据登录 PayPal，我们如何才能将其传递给客户，以便他们可以访问该密码？
此外，当他们实际取消或升级购买后时，是否会生成 IPN 来自动通知？
With paypal Website Payment Standard subscriptions.
Hi guys, I understand that username and password are generated after processed by Paypal side and we can also set IPN.
So can customers access subscription using that username and password and take action against the subscription that was purchased such as cancelling and upgrading?
I understand that passwords are hashed so how can we pass on to customers so they can access this if they can login to paypal using those credentials?
Also when they actually do cancel or upgrade post-purchase, does IPN gets generated to notify automatically?
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不，这些用户名和密码不会用于访问订阅。
默认情况下，只有 PayPal 帐户持有人才能使用网站付款标准注册订阅。他们可以通过 PayPal 帐户中的“我的预先批准的付款”查看/取消这些订阅。
作为商家，您可以通过“定期付款仪表板”查看它们。
您可以通过注册 增强型定期付款（仅在美国/英国提供）。
但是，只有您才能查看/取消现有订阅。如前所述，用户名/密码不用于控制订阅。它们只是为了您的利益而创建的，因此您可以进行 1:1 订阅：用户名连接以集成到您网站的访问控制中（例如 .htaccess）
No, these usernames and passwords are not used to access the subscriptions.
Only PayPal account holders can sign up for subscriptions by default with Website Payments Standard. They can review / cancel these subscriptions through 'My pre-approved payments' in the PayPal account.
You, as a merchant, can review them through 'Recurring payments dashboard'.
You can start accepting subscription signups from non-PayPal account holders by signing up for Enhanced Recurring Payments (available in US/UK only).
However, only you will be able to review / cancel existing subscriptions. The username / password is, as said, not used for controlling the subscription. They are merely created for your benefit so you can have a 1:1 subscription:username connection to integrate into your website's access control (e.g. .htaccess)