Using Outlook for Android in business environments for email and scheduling
Hi Williams Phoebe,
I completely understand how frustrating and disruptive this situation must be.
Below is the latest update I've been able to monitor regarding Incident ID MO1550821 as of now:
If you have access to the Microsoft 365 Admin Center, you can review Microsoft's service health advisory and follow the latest updates directly through this incident link.
If you're an end user without admin permissions, kindly reach out to your Microsoft 365 administrator and ask them to monitor this incident and keep you informed of any relevant updates.
I sincerely appreciate your patience and understanding. Hopefully, Microsoft will be able to resolve this issue soon so that we can all regain normal access to the affected services.