Step 1. Click on Devices from the left-hand menu in the Admin Center

Note: If you have already have an assignment key, please skip to step 5. 

Step 2. Click on Edit located on the right-hand side of your site. 

Step 3. Enter an Automatic Assignment Key

Step 4. Click Edit to close the dialog box

Step 5. Select Download Chromebook Config. 

See Next Step: Upload & Deploy the Senso Client configuration file using the Google Admin console