Thanks @Suteja Kanuri​  for your response. its helpful.

Can you share how to pass run_as_user_name in parameters to run job without creating a job. i was using    . DatabricksSubmitRunOperator in airflow and passing below json as param but its not considering it. also through cli its not considering it may be my format of json is not correct for the param run_as_user_name ?

 "json": {

          "existing_cluster_id": "{{ env.existing_cluster_id }}",

          "dbt_task": {

            "project_directory": "",

            "commands": [

              "dbt deps",

              "dbt run --select models/ZZZZ"

            ],

            "schema": "kpi",

            "warehouse_id": "XXXXXX"

          },

          "git_source": {

            "git_url": "https://axxxx-dbt",

            "git_provider": "azureDevOpsServices",

            "git_branch": "master"

          },

          "run_as_user_name": "user@test.com"

        }