Navigate to your SportsEngine team website, or go to sportsengine.com.
At the top of the page, click Sign in.
Click on your Account Initials/Profile Photo > My SportsEngine in the upper right-hand corner.
On the left-hand navigation, click on the Household tab.
Click View Profile on the profile you want to add a mobile phone number to.
Next to Profile Information, click the pencil icon.
Scroll down to the "Phone" field.
Input the phone number.
Update Athlete's Phone Number on Mobile App
Under Household Information, tap the player you wish to edit.
In the bottom right corner, click Edit.
Input the phone number within the Phone Number field.