Microsoft launched Office 2016 for Mac on 9 July 2015, which is available to Office 365 subscribers. While the new Office for Mac provides users with some wonderful new functionalities it is not a good news for EndNote users.
EndNote is currently not compatible with office 2016 on Mac. We highly advise EndNote and Mac users not to upgrade to Office 2016 on Mac at this stage while Thomson Reuters is working on a patch for EndNote X7 to fix this compatibility issue. According to their website this free update to EndNote X7 will be ready by the Fall.