SCCM Co-management – MDM enrollment failed with error code 0xcaa9001f ‘Integrated Windows authentication supported only in federation flow.’

Recently I was setting up Co-Management in SCCM Current Branch 1810. I was having issues with clients not being enrolled into Intune.

First I confirmed that the device was Hybrid Azure AD joined (this is a requirement, the device needs to be registered in Azure AD) then when looking at the CoManagementHandler.log file on the client I saw the error:

MDM enrollment failed with error code 0xcaa9001f ‘Integrated Windows authentication supported only in federation flow.’. Will retry in 240 minutes…

I found this error to be misleading. I am using Azure AD Connect with password sync, and not ADFS.

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In my case, this error was caused by an enrollment restriction being set that blocked Windows 10 devices from being enrolled.

In Intune (portal.azure.com or devicemanagement.microsoft.com) in Device enrollment > Enrollment restrictions

In my Default restriction in Properties, then Select platforms, I had Windows (MDM) set to Block.

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After allowing Windows (MDM) to Allow, the CoManagementHandler.log said Queuing enrollment timer to fire at 01/15/2019 21:42:19 local time

After trying again it was successfully enrolled into Intune and you can see the Managed By now says MDM/ConfigMgr Agent

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