I just want a notification when a contact opens

[XL5]

I found this below.
“You can receive a maximum of 100 messages per phone number, per configuration, per day”

Changes to SMS Service

EDIT: Users with US phone numbers can text YES to 844-647 to opt in at any time after September 25, 2019. Anyone who has opted in prior to that date will need to opt in once more. UPDATE 9/26/2019: We have completed the aforementioned changes to our SMS service. US users may now opt in at any time by texting YES to 844-647 for each phone number set up to receive SMS. We apologize for the short notice, and we appreciate your patience with these critical changes to ensure continued compliance with legal regulations and adjusting our services for improved support and scale. What does this change mean for you? US Customer: You must opt in to continue receiving SMS from SmartThings. You can do this by texting YES at any time to 844-647 for each phone number set up to receive SMS. If you ch…

You know, I recommend SmartThings all the time. But my friends reject it. Why? No ability to back up their work. They go with other systems that allow users to make back ups so that if the hub fails they can be easily restored. I have a version 2, I would buy a version 3 hub tomorrow if it was easy to make the switch.