It is not recommended to upgrade the software from the Community Edition to the Enterprise edition. The integrity of the data cannot be guaranteed.
It is notionally possible to do this - however, since the version of the Community Edition is inevitably different to the version of the Enterprise edition, some or all of the configuration settings may be different. Porting the configurations across is risky. In any case, its a good idea to start with a clean configuration when deploying a new security device.
