Our SNS integration allows you to be notified when tests start, finish, and fail. Customize the settings to decide which SNS topic gets the notification, what should be included, and under what conditions to send a notification.
The integration configuration can be found at Org Management -> Integration.
Login to your Testable account and navigate to Org Management => Integrations => add SNS from Add Dropdown.
To disable you can either do it via Testable under Org Management => Integrations => SNS => Disable button. This will disable any further notifications.