curl --request POST \
  --url http://localhost/api/v3/batches/{batch}/items \
  --header 'Content-Type: application/json' \
  --data '
{
  "items": [
    {
      "status": "pending",
      "external_id": "<string>",
      "entity_id": "<string>",
      "error": "<string>"
    }
  ]
}
'

{
  "data": {
    "id": "<string>",
    "import_job_id": 123,
    "entity_type": "<string>",
    "total_count": 123,
    "status": "<string>",
    "success_count": "<string>",
    "failed_count": "<string>",
    "processed_count": "<string>",
    "created_at": "<string>",
    "updated_at": "<string>",
    "items": [
      {
        "id": 123,
        "entity_id": "<string>",
        "external_id": "<string>",
        "status": "<string>",
        "error": "<string>",
        "created_at": "<string>",
        "updated_at": "<string>"
      }
    ]
  }
}