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Microsoft Sharepoint 2019 Enterprise User Client Access License
Microsoft SharePoint 2019 User Client Access Licenses (CALs) are required to access Microsoft SharePoint Server 2019 directly or indirectly for content limited to internal use—that is, not available to external users.
Microsoft SharePoint 2019 Enterprise User Client Access License is an “additive” CAL, customers must also purchase a Standard CAL in order to enable the Enterprise CAL.
Microsoft SharePoint 2019 Enterprise User Client Access License features access to the following additional capabilities and features of SharePoint:
Search, including rights to access FAST Search Server for SharePoint. (You must purchase FAST Search Server for SharePoint separately.)
Composites, including Access Services and InfoPath Services.
Insights, including PerformancePoint® Services, Excel® Services, and Visio® Services.