Project (Data Management) does not copy stand-alone tables and relationship classes

[neil_perol]

Hi everyone,

I'm a bit stuck in this script I'm writing with ArcPy. I am trying to create a script that projects a dataset, however only feature classes and feature class to feature class relationship classes are being projected into the ouput dataset. I have some relationship classes that relate to stand-alone tables outside the dataset which cannot be copied automatically. 

Is there any way for the "Project (Data Management)" function to copy stand alone tables and relationship classes (with these tables)? Or does anyone know a wrap-around to this issue?

Below image shows a sample input (sample_1994) and output (sample_2020) after running "Project".

[DanPatterson]

You ruled out

Copy (Data Management)—ArcGIS Pro | Documentation

as a step?