@nicole_lu_PM  So sorry for coming back to this issue after such a long time. But I looked into it and it seems like this concept of OBO token is applicable in case we use Databricks with AWS as our cloud provider. In case of Azure most of the comments I found are regarding using AAD token. But we tried in both cases and it still does not seems to work. Let me know if it is Okay for you or someone from your team and  I can contact our Solutions Architect to loop your team in with regards to this issue so that we can share more details and investigate further.

Looking forward to hearing from you.

Regards,
Rachit Ahuja