When trying to create a user authentication report that would display the Description field from Active Directory, although the attribute is configured correctly and exists in AD, when the attribute is mapped as an identity attribute, the following error displays:
Cannot map attribute description as it does not exist in the physical directory. Choose a valid attribute
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This behavior of the Description attribute is for backward compatibility with earlier operating systems because the attribute existed in the SAM APIs before AD existed. See the Microsoft article on the
Description attribute for more information.