🎯 Purpose
Schedule campaign_runner execution for a specific date/time.
📥 Input fields
campaigns: List[CampaignRunnerInputItem]start_date: str(ISO‑datetime)
🧩 Workflow steps
- LOCAL →
campaign_planner_function - LOCAL →
campaign_planner_slack_notification
📤 Result
success flag + possible error.
Campaign Runner is started via Celery ETA.
📄 Code
apps/workflows/collections/campaign_planner.py