How do I change my multi-factor authentication number? Permanently deleted user July 16, 2019 20:16 Updated In order to change the number that we use for multi-factor authentication you will need to call or email email@example.com. Related articles How do I change/reset my password? (Web UI) Getting Started Resources How to schedule birthday messages How do I enable biometric ID on my iOS device? (Mobile) Navigating the Messages tab (mobile UI) Comments 0 comments Please sign in to leave a comment.