Failed webhook response

Complete example JSON for the failed webhook.

This sample uses invented data to illustrate the prepared version-2 History API format. Check with LMN whether the contract and multi-provider collection are enabled in your environment. See the History endpoint reference, integration guide, and field definitions for interpretation.

Download the JSON file.

{
  "id": "evt_01K00000000000000000000002",
  "type": "history_lookup.failed",
  "occurred_at": "2026-10-18T10:05:00+09:00",
  "data": {
    "history_lookup_schema_version": 2,
    "aggregate": {
      "schema_version": 1,
      "vehicle": {
        "vin": "LMNSBX00000000001",
        "plate": "00가0000"
      },
      "events": [
        {
          "id": "c7bfe9b9555554700ea1e5dafa1674400de18ef87a1ee343b6c09369368f5771",
          "kind": "maintenance",
          "certainty": "source_record",
          "candidate_group_id": null,
          "contexts": [
            {
              "date": "2026-04-01",
              "date_precision": "day",
              "mileage_km": 41000,
              "shop": null,
              "sources": [
                {
                  "provider": "car365",
                  "revision_id": "22222222-2222-4222-8222-222222222222",
                  "observation_id": "bac2681b30f8988d2e0f75bae0989f1d3bc4107c65b5d39a27ef8ca9d7d8066e"
                }
              ]
            }
          ],
          "fields": [
            {
              "id": "d639a97073f67b14454767cc73c02987b9592bb13938bccafe2a29cfb47e3fac",
              "subject": "maintenance",
              "key": "work_item",
              "cardinality": "set",
              "values": [
                {
                  "id": "daf453e08aeb17573d4807e2534f1aab8e05f466c04f6c7efdfb42f33bfd5a9c",
                  "value": "fuel_injection_pump",
                  "sources": [
                    {
                      "provider": "car365",
                      "revision_id": "22222222-2222-4222-8222-222222222222",
                      "observation_id": "bac2681b30f8988d2e0f75bae0989f1d3bc4107c65b5d39a27ef8ca9d7d8066e"
                    }
                  ]
                }
              ],
              "conflict": false
            }
          ]
        }
      ],
      "facts": [
        {
          "id": "ecac536db015abcbce458dae0e5ebbd79c353472c4baade6d803e010923e0cb5",
          "subject": "vehicle_specification",
          "key": "mileage_km",
          "cardinality": "scalar",
          "values": [
            {
              "id": "ad40ee40a73a5aff79dd5c29436d1a8496fa134c265899d9d2c9a8afd1a1d32c",
              "value": 42000,
              "sources": [
                {
                  "provider": "car365",
                  "revision_id": "22222222-2222-4222-8222-222222222222",
                  "observation_id": "e73c5d701b953e9652f250929d08d76403a3d00e3ecb36a4f99c24db081f3d5a"
                }
              ]
            }
          ],
          "conflict": false
        }
      ],
      "complete": true
    },
    "sources": [
      {
        "provider": "carhistory",
        "status": "unavailable",
        "reason": "provider_unavailable",
        "revision_id": null,
        "captured_at": null
      },
      {
        "provider": "car365",
        "status": "available",
        "reason": null,
        "revision_id": "22222222-2222-4222-8222-222222222222",
        "captured_at": "2026-10-18T00:59:00Z"
      },
      {
        "provider": "encar",
        "status": "unavailable",
        "reason": "no_listing",
        "revision_id": null,
        "captured_at": null
      }
    ],
    "id": "hlk_01K00000000000000000000003",
    "status": "failed",
    "query": {
      "plate": null,
      "vin": "LMNSBX00000000001",
      "key_used": null,
      "fallback_plate_from_inventory": false
    },
    "identity_check": null,
    "identity_check_basis": null,
    "reference": "history-example-001",
    "source": null,
    "report_as_of": null,
    "failure": {
      "code": "provider_unavailable",
      "message": "The history provider could not be reached. No charge was made. Retry later."
    },
    "billable": false,
    "credits_charged": 0,
    "report": null,
    "created_at": "2026-10-18T10:00:00+09:00",
    "completed_at": "2026-10-18T10:05:00+09:00"
  }
}