Removes coupon and promotion code parameters with stackable discountsBreaking changes

What’s new

We’re removing the singular coupon and promotion_code parameters in favor of the discounts parameter that supports applying multiple discounts.

The coupon and promotion_code parameters and fields are no longer available on Subscription, Subscription Schedule, Customer or Preview Invoice endpoints and respective resources.

Use the discounts parameter to include one or more discounts on a Subscription, Subscription Schedule, or Preview Invoice, and read from discounts in the responses instead.

Parameters	Change	Resources or endpoints
coupon	Removed	Invoice#create_preview.schedule_details.phases[]Invoice#create_preview Subscription#create + 6 more Subscription#update SubscriptionSchedule#create.phases[]SubscriptionSchedule#update.phases[]SubscriptionSchedule.phases[]Customer#create Customer#update
discount	Removed	Invoice Subscription
promotion_code	Removed	Subscription#create Subscription#update Customer#create + 1 more Customer#update

View your current API version in Workbench.
If you use an SDK, upgrade to the corresponding SDK version for this API version.
- If you don’t use an SDK, update your API requests to include Stripe-Version: 2025-03-31.basil
Upgrade the API version used for webhook endpoints.
Test your integration against the new version.
If you use Connect, test your Connect integration.
In Workbench, perform the upgrade. You can roll back the version for 72 hours.