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Give ArcGIS Pro the ability to log into ArcGIS Enterprise when Portal is configured with "One identity provider" and this provider redirects the user to a cascading federation of SAML IdPs. Still not fixed in 2.7.3.
This should be resolved issue has been resolved with an enhancement in ArcGIS Pro 2.8., and the workaround is as follows:
1- Connect or Switch to Spatial Portal and click on Sign in:
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2- Please make sure you click on Sign In Using Browser:
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3- In the newly opened browser, sign in with your QGov username and password:
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4- In the OAuth2 Approval webpage copy the code and pasted it into ArcGIS Pro:
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5- In ArcGIS Pro Submit the code in the ArcGIS Sign In window:
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