# Sending an expired credit card notification

Ensuring seamless subscription renewals is key to maintaining customer satisfaction and retaining subscribers. An expired credit card can interrupt this process, leading to service disruptions for the customer and potential revenue loss for the service provider. By implementing a system that triggers notifications for upcoming credit card expirations, the service provider and the customer can take proactive steps to update payment information and avoid interruption in service. This documentation outlines the process for triggering and sending an expired credit card notification to improve subscriptions' update and renewal success rate.

This notification triggers before a shopper's credit card information associated with a subscription expires.

{% hint style="success" %}
If the credit card information expires, automatic subscription renewal will fail. The notification allows you to ask a shopper to update their credit card details before it expires, increasing the card update and renewal success rate for a subscription.
{% endhint %}

## Notification trigger

The following classes trigger an expired credit card notification:

* `SubscriptionNotificationTask`
* `RenewalReminderNotificationTask`
* `AutoRenewalReminderNotificationTask`
* `TrialReminderNotificationTask`
* `ManualRenewalReminderNotificationTask`
* `TrialManualRenewalReminderNotificationTask`


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