An Application Key is a sequence of characters used to change the state of the current LonMaker or LNS license. The Application Key is either automatically generated by Echelon when you submit your request or is provided to you by firstname.lastname@example.org when you activate a LonMaker tool or request a license or credit replacement.
The PC Key generated when you fill out the activation or request form must match the new one generated when you get the Application Key. If they don’t match you will not be able to use the new Application Key and you will have to request a new replacement Activation Key or replacement credits.
We recommend that you do not use the LonMaker tool or any other LNS tool to make any changes while you are waiting for the new Application Key.