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Mplus

Add-on Purchases

Existing license holders with a current Upgrade and Support Contract (the first year of which is included with purchase of a license) can upgrade from the base, mixture or multilevel add-on by paying the difference in pricing between the two packages.  To order an add-on, login to your customer account, click on view your licenses, click on upgrade and select the add-on you wish to purchase from the available choices.  This is for the add-on only and does not include the yearly Upgrade and Support contract fee.