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SmartConnect: Error: Procedure or function taExtenderWindowAddUpdate has too many arguments specified for each document.

Published: Sep 15, 2025
Post Author Written by Amit Chaudhari

Fixing: taExtenderWindowAddUpdate has too many arguments specified for each document

The error below was encountered during the data import process into Extender using SmartConnect.

If you’d like to watch a video explanation of this, see below or click here.

This issue is typically observed after upgrading SmartConnect from 2018 to 21, while still running Microsoft Dynamics GP versions earlier than GP/Extender 18.2.
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Quick Solution: To “re-run install” from GP Connection.

No changes are expected in the existing SmartConnect mappings, if any are present.

taExtenderWindowAddUpdate

This is used to update the procedure taExtenderWindowAddUpdate by adding columns 16 through 30, which are required for SmartConnect 21 to synchronize properly. While these columns are not necessary for GP versions earlier than 18.2, SmartConnect 21 procedure references them as standard because Extender 18.2 and later versions introduced columns 16 to 30 as the latest.

SQL Trace taprocs
After
Before

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