Hey Community folks! 👋🏻
With Microsoft recently depreciating Basic Auth for Office 365, those who are using Exchange ActiveSync payloads will likely experience authentication errors if they're not already using modern authentication.
A simple fix for this is to enable "Use OAuth for Authentication", this will prompt the user to authenticate using the modern method and allow the user to continue to use the native Mail, Calendar, Contacts, and Notes applications on iOS.
You shouldn't need to fill in the Signin URL or Token Request URL fields, as it'll prompt the device to auto-discover, however, if you do need these they can be found on your Office 365 admin console.
A small downside of this compared to basic auth, is that the end user must know the username & password of the O365 account they're authenticating, this is a limitation of using modern auth and is not something we can control on the Meraki end.
Meraki Support can assist if you have issues installing the payload, but once the payload is installed this is outside the remit of Meraki's control and you should direct authentication questions to Microsoft.