We rely on the Append tool to update a number of feature services on a semi-regular basis. We have recently discovered that when appending data to a feature service, the tool works super quick (seconds) to append thousands of records when run by and ArcGIS Online administrator. But for Non-Admin users running the same tool, with the same input & target data, using the same PC & network connection (essentially everything is the same except their ArcGIS Online member role) it is super slow (hours).
Why????
I even tried a custom role where I toggled the below setting, thinking that looked like the most logical setting that might make a difference, but alas - it had no effect.
