A recipient can unsubscribe from your SMS survey by replying to the first SMS message with 'STOP' or 'UNSUBSCRIBE'.

SightMill changes this recipient to 'unsubscribed' and does not record any score or free text. The recipient can subscribe again by replying with 'START' or 'SUBSCRIBE'.

To view which recipients have unsubscribed, log in to your dashboard and click on Settings > SMS > SMS Data List.

The 'Subs' column shows 'Yes' if the contact is currently subscribed and receiving SMS messages and shows 'No' if the contact has unsubscribed.