Named user licenses also allow ArcGIS Pro versions 1.0 and newer, and Premium Apps to be licensed via an on-premises Portal for ArcGIS instance.ĪrcGIS License Manager, once installed on the network, keeps track of the number of copies of the software that can be run concurrently or, in the case of named users for ArcGIS Pro or Premium Apps, the number of simultaneous sessions. Authorizing licenses on your license serverĪ concurrent use license allows copies of ArcGIS Desktop, ArcGIS Engine, Esri CityEngine, and ArcGIS Pro 1.2 and newer to be installed on numerous machines.