I am very new in unity and I need to import users from Exchange, so how can I Import users?
When you click on add users you have the option to import or to create. If you have looked at the page the 2 options are pretty self explanatory:
Import Existing Exchange User
Add Subscriber Settings
Whenever you need documentation look here, almost any task you need to do is contained within these docs, so please take some time to review them:
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