Hi, thanks for this. 
it doesn't seem to be the simple straightforward solution i thought it was going to be. 
They've advertised serverless budget polices as a way to monitor costs, but unfortunately, it seems like you can only monitor them within Databricks. which is kind of useless when everything else is being monitored in azure!

I'll have a look at Azure Cost Allocation Rules or Azure Tag Inheritance and see how they pan out. 

When you say "script tag mapping during your export/reporting workflow to manually associate those values." how would that work? 

Cheers

Paul