When you purchase, renew, or change the Zimbra license, you must update the Zimbra server with the new license information. The Update License Wizard is used to upload and install a new license or to update an existing license.
One Zimbra license is installed for all servers in your Zimbra Collaboration Suite environment. This license is on the Zimbra LDAP server.
Save the license on the computer you use to access the Administration Console.
Log on to the administration console, go to Global Settings>License tab and on the toolbar,click Update License. The License Installation Wizard opens.
Use Browse to select the ZCS license file. Click Next. The license file is uploaded to Zimbra LDAP server.
Click Install to install the license file.
After the license file is installed, the current license information on the License page is updated to reflect the new information.