In the main screen, refer to the lower pane and select the last icon to the right as shown below.
Select Connections from the options.
In the Connection page select the Adidas Running connection and click on Connect. Please note that you are using your existing Adidas Running login to connect here.
Complete all the fields required by Adidas Running.
Here are the steps above in action:
IMPORTANT: Once you have completed connecting there will be a few seconds delay and it is very important that you wait until you see this screen before returning to the app: