To send text message reminders and updates to your event attendees, be sure to capture phone numbers during the registration process. When setting up your registration / rsvp form, make the Phone Number field Active.

Then, event attendees will provide their phone number and will have the option to opt-in to receive messages via the Text Messaging module.

Please note: once a phone number is submitted, neither EventCreate nor the event coordinator is allowed legally to made changes. Users grant consent during registration and changing the number would invalidate that consent.