You return demo licenses after they have expired or when you commission a site.
Do not remove the demo licenses file from Device Administrator until all demo licenses are removed from your field servers.
In Device Administrator, click Entitlements .
In the Entitlements view, click Demo License .
Click Delete .
Click the Save current list button
You must now purchase, assign, and activate licenses for the features you want to use.
Mer information finns i Field Server Licensing on Field Servers Connected to Internet Workflow .