The IM button isn't enabled for all users in the contact card in Skype for Business 2016 Content provided by Microsoft Applies to: Skype for Business 2016 Select Product Version All Products Symptoms When you try to send an instant message (IM) to a contact by opening the Contact Card in Microsoft Skype for Business 2016, you find that the IM button isn't available. Resolution To fix this issue, install the April 4, 2017, update (KB3178717) for Skype for Business 2016. Last Updated: 4 Apr 2017 Was this information helpful? Yes No Tell us what we can do to improve the article Submit Thanks! Your feedback will help us improve the support experience.