Removes support for discount coupons that don't have a specified end timeBreaking changes

What’s new

We’re removing support for creating new amount_off coupons with a forever duration and applying these to subscriptions, subscription items, subscription schedules, invoices, invoice items, quotes, or checkout sessions.

Why is this a breaking change?

We’re removing the ability to create coupons with both a discount (using the amount_off field) and indefinite length (with duration: 'forever').

As part of this breaking change, you can’t use promotion codes, coupons, or discounts related to existing coupons configured this way with a Subscription, Subscription Item, Subscription Schedule, Invoice, Invoice Item, Quote, or Checkout Session.

Impact

You can no longer attach forever and amount_off coupons to subscriptions. Instead, directly attach amount_off coupons to the invoices you want to discount. You can do this through the Invoices API, the Dashboard, or in response to a webhook event.

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