Add note for b2b dc

Author: jkdouglas

articles/active-directory/external-identities/cross-cloud-settings.md

@@ -81,6 +81,9 @@ Follow these steps to add the tenant you want to collaborate with to your Organi
 
 1. If you want to change the cross-tenant access settings for this organization, select the **Inherited from default** link under the **Inbound access** or **Outbound access** column. Then follow the detailed steps in these sections:
 
+> [!NOTE]
+> B2B direct connect is not supported for collaboration with Azure AD tenants in a different Microsoft cloud.
+
    - [Modify inbound access settings](cross-tenant-access-settings-b2b-collaboration.md#modify-inbound-access-settings)
    - [Modify outbound access settings](cross-tenant-access-settings-b2b-collaboration.md#modify-outbound-access-settings)
 

articles/active-directory/external-identities/cross-tenant-access-overview.md

@@ -69,6 +69,9 @@ To set up B2B collaboration, both organizations configure their Microsoft cloud
 - Use B2B collaboration to invite a user in the partner tenant to access resources in your organization, including web line-of-business apps, SaaS apps, and SharePoint Online sites, documents, and files.
 - Apply Conditional Access policies to the B2B collaboration user and opt to trust device claims (compliant claims and hybrid Azure AD joined claims) from the user’s home tenant.
 
+> [!NOTE]
+> B2B direct connect is not supported for collaboration with Azure AD tenants in a different Microsoft cloud.
+
 For configuration steps, see [Configure Microsoft cloud settings for B2B collaboration (Preview)](cross-cloud-settings.md).
 
 > [!NOTE]