This endpoint allows you to update the encryption key or endpoint URL of an existing subscription. To update the value, populate the field with the new input.

Before you can update a subscription, you must first obtain the subscription id and concurrency token (also known as the RowVersion property) for the specific subscription, as we have concurrency controls in place for PUT actions.

You can retrieve these two values by calling GET/api/v1/notificationselfservice/subscription.

You can read more about our concurrency handling here.