In Azure's Databricks jobs, {{run_id}} and {{parent_run_id}} serve as variables. In jobs with multiple tasks, {{run_id}} aligns with task_run_id, while {{parent_run_id}} matches job_run_id. In single-task jobs, {{parent_run_id}} aligns with task_run_id, yet {{run_id}}'s specific correlation remains unclear—potentially job_run_id.