Update tutorial-bulk-invite.md

Added metadata: ms.custom: engagement-fy23.

Author: csmulligan

articles/active-directory/external-identities/tutorial-bulk-invite.md

@@ -16,6 +16,7 @@ manager: celestedg
 # Customer intent: As a tenant administrator, I want to send B2B invitations to multiple external users at the same time so that I can avoid having to send individual invitations to each user.
 
 ms.collection: M365-identity-device-management
+ms.custom: engagement-fy23
 ---
 
 # Tutorial: Bulk invite Azure AD B2B collaboration users