Is there a way to import a CSV with either UPN or SMTP addresses into powershell then run a command to block those users OWA and EAS access on their mobile devices? Is it then possible to wipe only account data (which is an option in the Exchange Admin Center)? I'd rather not have to touch each user account to do this.
FYI, I set up Office 365 MDM and it was able to enroll and manage a few users. Problem is we also use Meraki MDM. As such, those with Meraki MDM (only for company wifi and maybe VPN - that is another group) received failures when trying to enroll. The devices did show up in Office 365 MDM as managed, but trying to wipe company data did not work (stuck on pending) and it is too much of a hassle for the user to have to download the company portal app, install the cert, then allow management. It was much simpler on my Samsung with Android.
Anyway... any help much appreciated as I need to have this sorted by Friday so I can enforce the new company policy.