The following guide can be used to authorize JMP 18.1 and newer on non-networked (airgapped) machines. The most recent version of JMP can be downloaded from my.jmp.com
Step 1) Launch JMP

Step 2) Copy the entire Request Code from the Authorization screen:

Step 3) Navigate to jmp.com/authorize on a networked machine
You are prompted for an email address. This email address must be authorized for JMP usage.
After signing in, you will receive a verification code via email.

Step 4) Enter the Request Code from JMP and click “Get Authorization Code”

Step 5) Click “Download as File” or “Send in Email” to obtain your Response Code.txt file

Step 6) Go back to JMP and click the Browse button on the Authorization screen and navigate to the Response Code.txt file. Select it to complete manual authorization of JMP 18.