When migrating a subscription plan, the discount associated with the subscription will not apply on the first invoice. Behaviour found when:
- Set up a plan family with a migration path. Make sure that the products in the migration path are mapped and that discounts are set to be passed over.
- Set up a customer with the source plan. Activate the source subscription before applying any coupons or discounts.
- Add discount(s) to the source subscription's products either manually or through a coupon.
- Migrate the source subscription to the destination subscription before the source subscription goes through a renewal.
The discount is not applied on the preview invoice or on the invoice that is subsequently generated. This applies to the first invoice only.
There is no known workaround at this time. However, when migrating a subscription after the discount has already been applied to a posted invoice (such as by applying a coupon before activating the subscription) the discount is correctly applied to the first invoice of the destination subscription.