Merge pull request #90408 from MarileeTurscak-MSFT/patch-170

Added note about Transient NameID

Author: PRMerger19

articles/active-directory/develop/active-directory-saml-claims-customization.md

@@ -62,7 +62,7 @@ From the **Choose name identifier format** dropdown, you can select one of the f
 | **EmailAddress** | Azure AD will use EmailAddress as the NameID format. |
 | **Unspecified** | Azure AD will use Unspecified as the NameID format. |
 
-To learn more about the NameIDPolicy attribute, see [Single Sign-On SAML protocol](single-sign-on-saml-protocol.md).
+Transient NameID is also supported, but is not available in the dropdown and cannot be configured on Azure's side. To learn more about the NameIDPolicy attribute, see [Single Sign-On SAML protocol](single-sign-on-saml-protocol.md).
 
 ### Attributes