fatematzuhora

[dry ore]

You may follow this guide to upgrade the subscription: https://stripe.com/docs/billing/subscriptions/upgrade-downgrade

In the same request to upgrade the subscription, default_payment_method can be set to the new payment method ID: https://stripe.com/docs/api/subscriptions/update#update_subscription-default_payment_method

[brazen meteor]

where do I get the new payment method ID?

I want to setup the new payment method ID and the upgrade the subscription together

[dry ore]

List Customer's Payment Methods API can be used to get the payment methods that have been attached to the customer (if the new payment method has been set up): https://stripe.com/docs/api/payment_methods/customer_list

In the same upgrade request, default_payment_method can be set to new payment method ID.

[brazen meteor]

It will be completely a new payment method, not exist in the payment method list

[dry ore]

I see! In this case, it will be a two-step process:

1. Use Setup Intent to collect new payment method: https://stripe.com/docs/payments/save-and-reuse?platform=web&ui=elements
2. Upgrade the subscription and set the new payment method ID created from Step 1 to default_payment_method in the Update Subscription API: https://stripe.com/docs/api/subscriptions/update#update_subscription-default_payment_method

[brazen meteor]

Is there any other way?
I don't want to use setup intent

[dry ore]

Alternatively, you can use Customer portal to let customer manage the payment methods on their own: https://stripe.com/docs/customer-management

[brazen meteor]

All right, thanks