Unexpected results in the Exchange RBAC roles report
From Report Center, in General Reports > Administrative Roles and Global Administrators > Administrative Roles > it does not show the Exchange role. In General Reports > Administrative Roles and Global Administrators > Defined Roles > it does show the Exchange role but it does not contain any members in it.
The internal Nova job responsible for this "Administrative Roles and Global Administrators" is actually collecting Directory roles. This data is coming from Azure AD and not from Exchange Server.
To better understand the difference between those types of directories and their roles refer to:
Some shared roles are also mentioned in the documentation above.
The reason why these EXOL values are shown in reports (e.g. in "Defined roles") is that it was collected by a legacy Nova job which is no longer supported. These EXOL RoleType rows are actually not roles but groups of roles. See the links below for more information: