This chapter contains information about the functions which are normally included in the standard Invantive Estate Microsoft Outlook Add-In. The Invantive Estate for Outlook enables the possibility to Invantive Estate work without the user interface being open. Via the Invantive Estate for Outlook user interface you can access functions which are necessary to process daily operational events of a project. Via the web user interface you also have access to functions with which you can enhance structural settings for a project.