(intro)
Opt-in:
Typically a copy of your approved IRB document that notes SMS/ text message communications is required to facilitate opt-in requirements
Occasionally, for low risk studies, a text message survey can be initiated by sending a specific keyword to a designated phone number (STUDY, for example, not case sensitive), triggering the survey to begin. This keyword and number can be advertised to participants, allowing them to easily opt-in and begin interacting via text.
Opt-out:
How to participants opt out of receiving text messages? Can we see when they do?
How to suggestions:
https://mosio.zendesk.com/hc/en-us/articles/360054279032-Contacts-Add-New-Contacts
https://mosio.zendesk.com/hc/en-us/articles/360054280592-Alerts-How-to-Schedule-Alerts
https://mosio.zendesk.com/hc/en-us/articles/360027557631-How-To-Find-Your-Virtual-Texting-Number