I'm trying to share a feature service from our ArcGIS Portal to ArcOnline. The feature service is shared to everyone on Portal. Previously, we just used the "Add an Item" tool (this tool still on our Portal) and everything worked just fine. Apparently today the "Add an Item" tool has been updated, but it doesn't seem to work. My issues:
1) What is a custom parameter and why is it important?
2) Am I doing something wrong or is this a bug?
3) Can you please provide more documentation for this new item tool?