When contacts are imported to a list, they’re registered in the system as active (‘On’). When messages are sent to the list, the system automatically updates the state of each contact to determine whether the contact should remain active or be updated to inactive (‘Off’).
To view a contact’s status, hover over the Database Management icon (person with a cog) in the platform navigation and click Manage Contacts. The contact checkbox is colour coded. Click on the Legend button below the contact list to see an explanation of each status.