To review or update your contact information and enroll in SMS (Mobile Messaging) alerts, follow these steps:

Log into your account
Once logged in, click on Profile Information
Click on the + sign to See Details or Edit to update your information

To enable Push Notifications in your mobile app, follow these steps:

iPhone - Initial Enrollment
Download/Update latest Amex App from App store
Select I Agree in End User Agreement
Log into your account
Click OK to the Notifications pre-consent
Click OK to the Push Notifications consent

iPhone - Reenroll
Go to Settings, then Notifications,select Amex
Turn Notification Center ‘On’
Select either Banner or Alerts in Alerts Style
Log on to Amex app. Enrollment will NOT be updated unless you login.

Android - Initial Enrollment
Download/Update latest Amex App from App store
Select I Agree in End User Agreement
Log on to your account
Select Agree in Push Notifications consent

Android - Reenroll
Log on to Amex App
Go to More Mobile Services
Go to Push Notification Settings