> For the complete documentation index, see [llms.txt](https://docs.digitalriver.com/commerce-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/immediately-change-the-subscription.md).

# Immediately change the subscription

- [Activating a subscription](https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/immediately-change-the-subscription/activating-a-subscription.md): Learn how to activate a subscription.
- [Changing the subscription's external reference identifier](https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/immediately-change-the-subscription/changing-the-subscriptions-external-reference-identifier.md): Learn how to change the subscription's external reference identifier.
- [Updating a subscription's billing and shipping email address](https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/immediately-change-the-subscription/updating-a-subscriptions-billing-and-shipping-email-address.md): Learn how to update a subscription's billing and shipping email address.
- [Cancelling a subscription](https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/immediately-change-the-subscription/cancelling-a-subscription.md): Learn how to cancel a subscription by the subscription identifiers.
- [Updating the subscription's expiration date](https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/immediately-change-the-subscription/updating-the-subscriptions-expiration-date.md): Learn how to change the subscription's expiration date.