In this article, we explore applying the Exchange product key. We will illustrate this process through both the Exchange Admin Center (EAC) and PowerShell. We will also look at how to license multiple servers at once and how to locate all unlicensed servers in your environment. This process is the same for both Exchange 2013 and 2016.
Apply the product key with Exchange Admin Center
To apply the product key through the Exchange Admin Center follow these steps.
Log into the Exchange Admin Center (EAC). Navigate to the Servers tab and then the Servers sub-tab at the top.
Select the server you wish to apply the key and click the Edit () button.
From the General tab enter your 25-character product key into the 5 boxes under Enter a valid product key section.