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The error also occurs if third-party cookies are disabled in your browser. You can enable third-party cookies to prevent this error and keep it from recurring. For guided instructions on how to do this, you can also view Enable storage of third-party cookies and local data in your browser or app on Microsoft's website.

Seamless single sign on failed for the user. This can happen if the user is unable to access on premises AD or intranet zone is not configured correctly

Unofrturnally, a lot of reasons that can create this issue, please see the doc here

https://learn.microsoft.com/en-us/azure/active-directory/hybrid/tshoot-connect-sso

How to Access the MSPbots App from on MacOS, iPhone, or iPad

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