Clearer language about nested groups expansion

Author: isabelleatmsft

articles/active-directory/privileged-identity-management/pim-create-azure-ad-roles-and-resource-roles-review.md

@@ -135,7 +135,7 @@ To manage a series of access reviews, navigate to the access review, and you wil
 Based on your selections in **Upon completion settings**, auto-apply will be executed after the review's end date or when you manually stop the review. The status of the review will change from **Completed** through intermediate states such as **Applying** and finally to state **Applied**. You should expect to see denied users, if any, being removed from roles in a few minutes.
 
 > [!IMPORTANT]
-> If a group is assigned to **Azure resource roles**, the reviewer of the Azure resource role will see the expanded list of the indirect users with access assigned through a nested group. Should a reviewer deny a member of a nested group, that deny result will not be applied successfully for the role because the user will not be removed from the nested group. For **Azure AD roles**, [role-assignable groups](../roles/groups-concept.md) will show up in the review instead of expanding the members of the group, and a reviewer will either approve or deny access to the entire group.
+> If a group is assigned to **Azure resource roles**, the reviewer of the Azure resource role will see the expanded list of the indirect users with access assigned through a nested group. The expansion of users only applies to one layer of nesting (if the group has multiple layers of nesting, we only expand the top layer group assigned directly to the role). Should a reviewer deny a member of a nested group, that deny result will not be applied successfully for the role because the user will not be removed from the nested group. For **Azure AD roles**, [role-assignable groups](../roles/groups-concept.md) will show up in the review instead of expanding the members of the group, and a reviewer will either approve or deny access to the entire group.
 
 ## Update the access review