This is important to be as I have non-prod and production tenants and promoted my automation between them causes failures due to the DU project having a different name and/or different versions.
Is there any way to use variables for this step, or maybe an alternative setup that would make this possible?
Yes classify and extract documents data have those limitations as of now ..you can open the studio in prod and can select the prod model again
If option 1 does not work..then you might need to shift to UiPath.IntelligentODR.Activities 6.22+ which has different activities that support variables.for this you might need to remove the documentunderstanding package.
Hope this helps. There is a similar activity for extractor as well
But not there is a future enhancement for extract document data as well to support the variables