The `/on-behalf-of/tokens` API endpoint is not supported in Azure Databricks.Please generate an AAD token as described in this article: https://docs.microsoft.com/en-us/azure/databricks/dev-tools/api/latest/aad/service-prin-aad-token
what is the cluster mode?Could you please run below command and share resultsuc permissions get --external-location <externallocationname> --profile <databricksprofile>https://docs.databricks.com/dev-tools/cli/unity-catalog-cli.html#unity-catalog-cli
