This is a very broad question. Are you talking about a webmap, web viewer or arcgis service? What kind of service? Sample site?

Sorry, learning all this. The Link I am trying to setup is here. https://www.arcgis.com/home/item.html?id=47ad3e55e5c94243b1ecf1629d210452, should be a feature service.

Left bottom of the website in your link you can see an URL, copy the URL and paste in an Esri ArcGIS Server Feature Service reader. Done, that is all you need to do.

Are you talking about the Link for the URL pointing to the Rest Endpoint?

Trying the URL triggers an error.

Hi @tcronin​ I was able to load this data into FME using the URL found at the bottom of your feature service (https://gis.countyofriverside.us/arcgis_public/rest/services/OpenData/ParcelBasic/MapServer/) I used the ArcGIS Server Feature Service Reader.

Under the parameters I made sure to choose the Authentication type 'None' and populate the Layer that you wish to use (in the red box).

If you are still receiving errors after this please let us know!

Very Helpful. I hadn't used the Server Service Reader, in fact did not even know it was there, thank you.