PayPal 智能按钮（订阅）使用 paypal.FUNDING.CARD 按钮 update_client_config_error

Question

I'm implementing the Paypal Smart buttons to my website for subscription, with the following code:

paypal.Buttons({
    commit: false,
       createSubscription: function(data, actions) {
         return actions.subscription.create({
           plan_id: 'P-4688500211745173CL4LO52Y'
         });
       },
       onCancel: function (data) {
       },
       onApprove: function(data, actions) {
       }
  }).render('#paypal-button-container');

I subscribed via Debit Or Credit Card (paypal.FUNDING.CARD button). It returns the JSON data for subscription:

{
  billingToken: "BA-28952229JX1690450"
  facilitatorAccessToken: "A21AAF2g9HmhCrpdlvKv82KzTOL7s- 
  h7udVM63Jx6PoEQJvhRHUKZXuxdEewBWbAlh7Tta44GREGBKPqydgSaWBdTZBInLTMA"
  orderID: "91D07990YA8971453"
  subscriptionID: "I-EN0D6RAEFN8R"
}

But when I need to downgrade or upgrade the current subscription using https://api.sandbox.paypal.com/v1/billing/subscriptions/I-EN0D6RAEFN8R/revise API endpoint base on the PayPal docs. https://developer.paypal.com/docs/business/subscriptions/add-capabilities/revise-subscriptions/

The PayPal window automatically close and I get the error: "Uncaught Error: Api: /smart/api/billagmt/subscriptions/I-EN0D6RAEFN8R/cartid returned status code: 500 (Corr ID: e0a949aefc835)"

This is my code to revise subscription:

paypal.Buttons({
    commit: false,
       createSubscription: function(data, actions) {
         return actions.subscription.revise('I-EN0D6RAEFN8R', {
           plan_id: 'P-0P5665289K689682KL4MD5PQ'
         });
       },
       onCancel: function (data) {
       },
       onApprove: function(data, actions) {
       }
  }).render('#paypal-button-container');

Note: Subscribing via PayPal Account (paypal.FUNDING.PAYPAL button) doesn't have the error that I'm encountering when I subscribe via PayPal Credit Or Debit Card. I can also upgrade or downgrade the subscription plan using the revise code above.

Anybody experienced the same issue?

Answer 1

The behavior makes sense, you need to log into a PayPal account to approve revising a subscription.

When there is nothing to log into, there is no way to approve a revision on the client side. Your own authorized server-side API call is necessary to modify/cancel it. You can have the user sign up again (new profile) and cancel the original one.