Step 2: Enter your License Key
Open the mirth.properties file in a text editor. It is located in the conf folder in your Mirth® Connect installation folder. On a new line, add an entry named license.key whose value is your license key. It should look like this:
license.key = 194004b0162b4c3e8e9ac91a04ced23b-61fcea526ae9fc17f518c97a6f4e0822-14fe7fc64602bc7dce3d0529a292574a-6cfba515ccd495b86766044ff811b3v2
Save the file, and then restart the Mirth® Connect server.