adding SMS number to contacts

Hello Arabellamw ,

Any contacts you already have permissions and numbers to send SMS to, you can import them (uploading a contact file is easiest!) with the contact's associated email address, so those existing contacts can be updated. If you don't have these yet, you can still send an SMS opt-in to your existing contacts.

As for any form you've created through us, there are SMS contact field options available for them. These can be toggled on and made either optional or required.