Only Email/Print/Calendar admins and above can do this.

Note: Your accounts will need to verify their own number to be able to text them.

  1. In the side menu, click Org Tools > Accounts.
  2. Click Customize Filters.
  3. Click Has Valid SMS dropdown and select Yes.
  4. Click Apply.
  5. Select account(s) to text.
    1. If you do not see the desired account(s), it means they do not have a verified number.
  6. Click Communicate > Send SMS.
  7. Enter your message.
  8. Click Send.

See Also
Send SMS Text to Members