- Enable Subscribers to Upgrade Subscriptions
You can enable subscribers to upgrade their current subscriptions to superior subscriptions (as defined by you) through your self-care portal, with the upgrade taking effect immediately. To support this functionality, you must use the Subscribe APIs. - Enable Subscribers to Upgrade Subscriptions Using a Coupon
You can enable subscribers to redeem a coupon for a discounted upgrade to a superior subscription (as defined by you) using your self-care portal, with the upgrade taking effect immediately. To enable this functionality, you must use the Subscribe APIs. - Enable Subscribers to Upgrade Subscriptions with Promotional Rate
You can enable your subscribers to upgrade their existing subscriptions to superior subscriptions (as defined by you) at a promotional rate using your self-care portal, with the upgrade taking effect immediately. To support this functionality, you must use the Subscribe APIs. - Enable Subscribers to Downgrade Subscriptions
You can enable subscribers to downgrade their current Subscriptions to lower Subscriptions (as defined by you) using your self-care portal, with the downgrade taking effect at the end of the current billing period. To support this functionality, you must use the Subscribe APIs.