First, you will need to purchase Confluence to receive your commercial license key. If you already have a free 30 day evaluation then you can easily convert this to the commercial version, or setup your commercial instance on another system and transfer your trial data across.

Upgrade A Trial To The Commercial Version

If you wish to change your trial into a commercial version while keeping the same hardware, login in as a Confluence administrator and paste in your commercial license key under the Administrator > License Details screen. The conversion to a commercial version is instantaneous and can be done regardless of whether your evaluation period has expired or is still ongoing.

Migrate Your Trial Data To A Server

If you installed your Confluence trial on a PC but wish to host your commercial version on another system, such as a server managed by your IT department, you can transfer the trial data across. Begin by creating an XML backup on the trial PC, then install Confluence on the commercial server. During installation, you will be presented with the Confluence Setup Wizard. The wizard gives you the opportunity to insert your commercial license key and also to import an XML backup. If you import the XML backup from your trial, your commercial instance will be setup already containing all your trial wiki content and any internal users.