For more information, see Control access from unmanaged devices. This might block a user when they try to access a connected team channel file library on an app page. If SharePoint Online admin has enabled control access from unmanaged devices (conditional access policy) to allow/block SharePoint sites from unmanaged devices, then the same restrictions will be applied for Microsoft Teams integration because Microsoft Teams uses SharePoint sites for document management. To fix the issue, delete locations with an absolute URL.
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SharePoint Integration is not configured, but there is SharePoint document locations created with an absolute URL in your organization. To fix the issue, deactivate the SharePoint site. SharePoint Integration is not configured, but there is an active SharePoint site in your organization. SharePoint Integration is not configured, and OneDrive Integration is enabled. If you get an error while configuring Microsoft Teams Integration from Dynamics 365, it might be because of the following pre-requisites are not met.
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Microsoft Teams integration uses SharePoint integration at the backend, so if there is a failure with SharePoint integration or OneDrive configuration, it will also fail when you enable Microsoft Teams integration.
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Troubleshoot configuration issues with Microsoft Teams integration This topic provides information about the error messages you might face with possible resolutions and some known issues.