Outlook calendar access not working on Windows with CA in use

markheydon

Using the app on iPhone and Windows, in a nutshell, using Conditional Access on works account (Entra) and trying to use the Use Outlook Calendar feature. CA policies require managed devices for accessing company data. Both my iPhone and Surface Pro are managed, working fine on my iPhone, login to my works account and seems to work out it's a managed device and therefore allowed. Windows, however, seems to think the device is unregistered thus can't access Outlook calendar. It's like however the login bit is working on Windows isn't using the right way to do the auth or something and thus looks like a non-managed device when it really is on a managed device.

WorkingHours version: 2.10.26.0
OS + version: Windows 11 (latest)
Device model: Surface Pro 9

timo

Can you provide more details on what exactly happens when you try to authenticate to Microsoft on Windows?
The app uses the same authentication method on both iOS and Windows - the authentication flow happens in a WebView2 browser window. I currently don't know how I could reproduce this issue myself nor do I have an idea what could cause the problem or how I could fix it.