Skype for Business/Lync caches files locally on a MAC to pull information quickly and efficiently. Common reasons you will want to clear Skype for Business cache include:
- You can't log in to Skype for Business.
- Your Outlook and Skype for Business integration is not functioning properly.
- You have issues with Presence.
- Your Contact list is out of date.
- You cannot search for users in Skype for Business.
Action
- Log out and quit Skype for Business.
- Go to Finder > press Command+Shift+G > type in ~/Library > delete the following files:
- ~/Library/Containters > com.microsoft.SkypeForBusiness
- ~/Library/Application Support > Skype folder
- ~/Library/Internet Plug-Ins > MeetingJoinPlugin.plugin
- ~/Library/Logs > LwaTracing
- Open Keychain Access from /Applications/Utilities folder.
- Delete all keychains starting with Skype For Business.
Note: if you cannot locate the necessary folder under Library, type in the full path in the Finder or Spotlight search.