Removes coupon and promotion code parameters with stackable discounts
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.
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| [Removes coupon and promotion code parameters with stackable discounts](https://docs.stripe.com/changelog/basil/2025-03-31/deprecate-singular-coupon-promotion-code.md) | Billing | Breaking | api |
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The `coupon` and `promotion_code` parameters and fields are no longer available on [Subscription](https://docs.stripe.com/api/subscriptions.md?api-version=2025-03-31.basil), [Subscription Schedule](https://docs.stripe.com/api/subscription_schedules.md?api-version=2025-03-31.basil), [Customer](https://docs.stripe.com/api/customers.md?api-version=2025-03-31.basil) or [Preview Invoice](https://docs.stripe.com/api/invoices/create_preview.md?api-version=2025-03-31.basil) endpoints and respective resources.
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