When you update someone's mobile number that's also used for receiving text communication, you can make this change directly from their profile. Follow up with a new opt-in email to ensure the new number is used for all text communications.

1. In the search box at the top of the page, enter the name of the individual.
2. To view the individual's profile page, click their name from the search's drop-down menu.
3. In the Contact Information section, under Text Messaging, click Edit Settings.
4. Click the top drop-down menu, then click Add a new number.
5. Enter the new number, then click Update.