Is it possible to publish a service to ArcGIS Online using ArcMap 10.0?
In recent versions (ArcMap 10.1 and newer), there is the option "Share as..." in the "File" menu that allows publishing, but this option is not present in ArcMap 10.0.
Here is the answer I got from Esri Technical Support:
It is my understanding that you want to know if you can publish a service to ArcGIS Online using ArcMap 10.0. I have looked into this and that feature was implemented starting at version 10.1. https://community.esri.com/thread/44828
If you have access to a later version that you can use for your publishing that would be the easiest solution. If you do not there are other ways you can publish a service. For example, you can zip a shapefile and upload this to ArcGIS Online and from there publish this to a feature service. Please see the following documentation and keep in mind that some of these other options have limitations: http://doc.arcgis.com/en/arcgis-online/create-maps/add-layers.htm
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