Migration only. This endpoint brings historical data into Pylon from another system and isn't meant for everyday writes. To create records as part of normal use, call POST /issues/{id}/reply or POST /issues/{id}/note instead.

Imports one or more messages onto an existing issue. Imported messages keep the timestamps you send and don't kick off triggers, notifications, or AI side effects.

Rate limit: 120 requests per minute

{
  "data": {
    "business_hours_time_in_status_seconds": {
      "new": 120,
      "waiting_on_customer": 1800
    },
    "custom_fields": {
      "priority": {
        "value": "high"
      }
    },
    "state": "new",
    "time_in_status_seconds": {
      "new": 120,
      "waiting_on_customer": 3600
    },
    "workspace_phone_number": "+14155551234"
  }
}