The errror, "RuntimeError: Objects in this class cannot be updated outside an edit session" occurs even though operation succeeded when running arcpy.da.ExtendTable against a feature layer participating in a composite relationship class.

Last Published: December 15, 2015

ArcSDE/Enterprise Geodatabase

Bug ID Number	BUG-000090421
Submitted	August 31, 2015
Last Modified	January 28, 2021
Applies to	ArcSDE/Enterprise Geodatabase
Version found	10.2
Version Fixed	10.4.0
Status	Fixed

Steps to Reproduce

Bug ID: BUG-000090421

Software:

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