I have a DUO tenant with over 400 users. This is done via Directory sync (users@domainA.com). I would like to add about 20 usernames/aliases under a select few users but with a different domain name / same username from a different Active Directory (users@domainB.com). If I were to set up another sync, would these users be added as new users or would I be able to map the new sync to existing users?

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