Subscribing to notifications on the AWS Artifact console means that you have opted-in to receive notifications from AWS Artifact service. Subscribing to notifications is a one-time action that is a prerequisite for setting up notification configurations. In case you want to stop notifications from AWS Artifact service, the notification subscription button allows you to turn-off all AWS Artifact notifications using a single button click.
After subscribing, you must create one or more configurations to start receiving notifications. While creating a configuration, you can choose whether you need notifications on all reports and agreements or a subset of reports, and provide the email addresses of the individuals who would like to receive notifications.