Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello Glen Palmer (Trevello),
Good day! Thank you for posting to Microsoft Community. We will be happy to help you.
Regarding your query about Computers using M365 authentication only not recognizing Admin accounts for approval, please understand that this query is outside our expertise. For proper assistance with this issue, please get in touch with the Microsoft Q&A Community by visiting this website: Microsoft Entra ID - Microsoft Q&A and or Active Directory - Microsoft Q&A. I am sure that our experts from that team can address your query effectively and accurately. You can also consider opening a ticket to the online support team Get support - Microsoft 365 admin | Microsoft Learn.
Thank you for your cooperation and understanding. Please do not hesitate to post your queries in Microsoft Community and we will always do our best to assist you!
Sincerely,Simbarashe | Community moderator.