Teams error CAA50021

Zoe 1 Reputation point
2020-10-29T14:50:01.263+00:00

I have 2 users that are getting error CAA50021 constantly while signing into Teams application. I've tried all the possible combinations of answers when signing in to avoid the error, but need a formal correction.

Microsoft Teams
Microsoft Teams
A Microsoft customizable chat-based workspace.
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  1. JimmyYang-MSFT 49,106 Reputation points Microsoft Vendor
    2020-10-30T02:41:05.723+00:00

    Hi @Zoe ,

    Does this issue persist all the time?

    Can user login in Teams web client normally?

    To narrow this issue, are there any detailed error message in your Teams client?

    Based on my research, It seems related to Azure AD join and registration service.

    We suggest you contact your admin to confirm if Mobile Device Management for Office 365 or Microsoft Intune services is enabled. If not, you may let admin login Azure AD admin login Azure AD admin center > Devices > Devices settings to check if “Users may register their devices with Azure AD” is enabled.

    https://answers.microsoft.com/en-us/msoffice/forum/all/allow-my-organization-to-manage-my-device-error/0494a298-4d8c-4046-bcb6-135609f09c1c

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