Normally Web Maps in portal requires geographic coordinates when adding csv files to the map. It is quite the same when using Esri Maps for Office tool in MS Excel. When I try to add an excel data the tool requires Lat/Lon coordinates without any option to define a different projection system. The region we operate is UTM Z38 and all data we have is in UTM wgs84 coordinate system. There are tools everywhere to do this conversion but the users of our portal are generally not familiar with the projection concept I have to solve this within the portal.
Is there any way to add layers with UTM coordinates and have them displayed in the correct locations on the fly?