The Unified Contact Store (UCS) enables the functionality of having all contacts from the Skype for Business client stored in the Exchange mailbox instead of Skype for Business (SQL database). This recipe has the same requirement for the integration to work: OAuth communication should be in place so that it works as expected. Implement this recipe if you want to have both Exchange and Skype for Business contacts collected in one place.
By default, in Skype for Business 2015, the Unified Contact Store is enabled when OAuth is configured and working. This recipe will be completed using both Exchange Management Shell (EMS) and the Skype for Business Management Shell (SFBMS).
