For SMS Reminders to be sent to a phone number, the assigned Phone Type must be set to Phone Type is a Mobile Phone Type in Data Maintenance.
- Select Data Maintenance > Phone Types.
- Add a new row and type the name of the new phone type.
- If the phone type is able to receive SMS reminders, tick Phone Type is Mobile Phone Type.
- By default, the Mobile and Mobile (Work) phone types are ticked.