Set Up From Motivosity
Motivosity's Sharepoint add-in can be enabled by first navigating to 'Setup' -> 'Integration' and clicking on the 'SharePoint' application.
When the dialog appears, you will need to add your sharepoint ID so that it will have the ability to authenticate your users. Your sharepoint ID can be found at SharePoint -> Site Settings -> Site Collection -> App Permissions. Look at the 'App Identifier' and copy everything that is after the @ sign.
Setting up SharePoint
Search Motivosity in the SharePoint AppSource. Click 'Get It Now.
This will then add Motivosity to your 'Site Contents' where you will be able to use it as a quick link to log into Motivosity.