I am new to Arcgis Online, and I would appreciate any help!
I wanted to update attribute aliases for hosted map services (map image layer). I uploaded map service through Arcgis Server, and I am uploading the map service to Arcgis Open Data. I tried updating attribute alias in serviceSDE, and service MXD, but it was not working.
I also found this tutorial on updating feature services, but it was not working for map services. (https://blogs.esri.com/esri/arcgis/files/2014/10/How-to-Update-Hosted-Feature-Service-Schemas1.pdf )
Any help would be greatly appreciated!