Derek_Pickell If you are talking about the above article OWA policy for restriction of Downloading and offline access then it is applicable to OWA only not on to Application level be it Desktop or Mobile App! And if you try to achieve the same OWA restriction policy only to Windows and MacOS then yes very well possible need to uncheck Android and iOS platforms!! And it is not even required to choose the conditions tab just because you are looking to apply policy on to platform level then set the policy only for Platform level. From Client Apps perspective this is not even required as this policy works only for the Browser level access i.e. OWA limited access! Kindly go through this article given above else you can check my article as well in LinkedIn: https://www.linkedin.com/pulse/full-command-over-outlook-web-now-conditional-access-policies-sinha/