Unless registration is complete, as shown below, you are prompted to provide license identification.
Licensing is mandatory in order for the device to operate.
The CSa must be registered at MySonicWall first, and then the administrator enters their MySonicWall account credentials into the CSa web management interface so that the appliance can synchronize with the license server.
Licensing information
REST API Operation Licensing
REST API Operations require a separate Standalone API license. There are six variations available a MySonicWall.