# Subscription notifications You can use the Subscription Service Notification (SSN) to send updated payment details notifications emails to shoppers to increase the card update and renewal success rate for a subscription. A notification allows you to prompt a customer to update their card before it expires. To enable SSN, talk to your Digital River representative. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/subscription-notifications.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.