- If contoso and fabrikam are two domains in same Forest, and both objects are of type user, then this will cause a sync error. Because you can’t join two users from same connector. Error will be (I believe):
sync-generic-failure with stack trace saying something like: “An object is already connected with a different DN” - If contoso and fabrikam are AD Forests the objects with matching mail attribute will merge in metaverse and contoso will contribute UPN, ImmutableId, and other account based attributes. Fabrikam object should contribute resource attributes for mail flow / Skype etc.
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