How to Navigate This SmartConnect Error: taExtenderWindowAddUpdate has too many arguments specified for each document

In this video, we’ll walk through how to fix the SmartConnect error: “taExtenderWindowAddUpdate has too many arguments specified”.

This usually happens after upgrading to SmartConnect 21 while running GP/Extender versions older than 18.2. SmartConnect expects newer Extender procedure columns (16–30), but older versions don’t include them yet, so the mapping fails. If you'd like to read the help article that goes with this video, click here.