Drivers: Check with your dispatcher about an Activation Key
Administrators: See below

The 12-digit Activation Key can be found in two sections of the web application: users can go to Administration and scroll down to Mobile Apps (the Administration menu can be found in the top right corner of the screen). Once you click Activate next to the driver’s information, you’ll receive the key. Here you can also add your drivers’ emails to their respective profiles and click Activate. This will send an email to your driver with a link to download the app as well as the activation key.

Another option is to go to Administration and scroll down to Drivers. From there you can select a driver and new window will pop up. Click Mobile App to activate the key.