Change your contact details for authentication
In this article you will learn how to change you prefered authentication method examples are below.

Firstly open a internet browser and go to https://myapps.microsoft.com/

Sign in using your Dentex provided email address, once you are logged in you will see the below page,

Now select "My Apps" at the top lefthandside and a drop down will appear select "My Account". Once you have selected this you will see the below:

Now select "Secuirty Info"/"Update Info", in this section you can add/change your current method and simply update you contact number.
