FME2026 "Failed to retrieve feature types." - ArcGIS Portal Feature Service Reader

Question

I am trying to convert from FME2024 to FME2026.2. I am using a feature read, converting from “Esri ArcGIS Portal Feature Service” to “Esri ArcGIS Feature Service”. I have been able to make a connection to our enterprise portal, select the relevant group and feature service (image 1).

But when i try to select just the relevant feature class i need (not all feature classes) i receive an error below. If i leave this as <All Feature Types> this works but obviously I dont want to call every feature class where its not required.

Has anyone seen this before? Is there a work around?

j.botterill · Accepted Answer

Go to FME options > Web Connections > in the bottom right you have “Manage Services”

Find the new Esri ArcGIS Enterprise OAuth web services you configured.

Check the Redirect URI is set to the new standard 2026.2 strategy of Loopback Interface Redirect

article -External Browser Authentication in FME Form – FME Support Center

Go to the ArcGIS App Registration and add the https://localhost to the redirect URI… otherwise you get “400 error invalid redirect uri”

safe.esri.agol packaged web service used in 2026 onwards

onic007 · Answer

Brilliant, thank you!

FME2026 "Failed to retrieve feature types." - ArcGIS Portal Feature Service Reader

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