Chapter 10 Install and System Administration for FortiOS 5.0 : FortiCloud : Registration and Activation
  
Registration and Activation
There are five key activation steps. The procedure for each step may vary depending on your model and your FortiOS firmware version, and whether your device (FortiGate or FortiWifi) is brand new.
The steps are:
1. Registering with Support (New devices only)
2. Activating your FortiCloud account
3. Enabling logging to FortiCloud
4. Logging into the FortiCloud portal
5. Upgrading to a 200Gb subscription (Recommended)