Update an event

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Important note: Shift-based schedules use the V3 API and are not compatible with V2 automations. To create automations for Shift-Based Schedules, you need to:

1. Update your automations to use the V3 API for all new shift-based schedules
2. Keep the V2 endpoint for your existing schedules

An upgrade tool for existing schedules is coming soon; your legacy schedules will keep working in the meantime. Learn more.

Update an existing event.

Restrictions based on event timing:

• Past events (effective_until in the past): Cannot be modified
• Active events (currently producing shifts): Can only update effective_until
• Future events (effective_since in the future): All fields can be updated

{
  "event": {
    "start_time": {
      "date_time": "2025-03-03T09:00:00Z",
      "time_zone": "America/New_York"
    },
    "end_time": {
      "date_time": "2025-03-03T09:00:00Z",
      "time_zone": "America/New_York"
    },
    "assignment_strategy": {
      "shifts_per_member": 1,
      "members": [
        {
          "user_id": "PUSER123"
        }
      ]
    }
  }
}

{
  "event": {
    "id": "ABCDEFGHIJKLMNOPQRSTUVWXY2",
    "name": "Weekly On-Call",
    "start_time": {
      "date_time": "2025-03-03T09:00:00Z",
      "time_zone": "America/New_York"
    },
    "end_time": {
      "date_time": "2025-03-03T09:00:00Z",
      "time_zone": "America/New_York"
    },
    "effective_since": "2025-03-03T00:00:00Z",
    "effective_until": "2025-09-01T00:00:00Z",
    "recurrence": [
      "RRULE:FREQ=WEEKLY"
    ],
    "assignment_strategy": {
      "shifts_per_member": 1,
      "members": [
        {
          "user_id": "PUSER123"
        }
      ]
    }
  }
}