# Service job state change events
<a name="service-job-events"></a>

Anytime that an existing service job changes states, an event is created. For more information about service job states, see [Mapping Amazon Batch service job status to SageMaker AI status](service-job-status.md).

**Note**  
Events aren't created for the initial job submission.

**Example Service Job State Change Event**  
Service job state change events are delivered in the following format. The `detail` section resembles the response that's returned from a [DescribeServiceJob](https://docs.amazonaws.cn/batch/latest/APIReference/API_DescribeServiceJob.html) API operation in the *Amazon Batch API Reference*. For more information about EventBridge parameters, see [Events and Event Patterns](https://docs.amazonaws.cn/eventbridge/latest/userguide/eb-events.html) in the *Amazon EventBridge User Guide*.  
The `tags` and `serviceRequestPayload` fields are not included in the event `detail`.

```
{
  "version": "0",
  "id": "c8f9c4b5-76e5-d76a-f980-7011e206042b",
  "detail-type": "Batch Service Job State Change",
  "source": "aws.batch",
  "account": "{{123456789012}}",
  "time": "2022-01-11T23:36:40Z",
  "region": "{{us-east-1}}",
  "resources": [
    "arn:aws-cn:batch:{{us-east-1}}:{{123456789012}}:service-job/4c7599ae-0a82-49aa-ba5a-4727fcce14a8"
  ],
  "detail": {
    "attempts": [
      {
        "serviceResourceId": {
          "name": "TrainingJobArn",
          "value": "arn:aws:sagemaker:us-east-1:123456789012:training-job/AWSBatchmy-training-job88b610a69aa8380ca5b0a7aba3f81cb8"
        },
        "startedAt": 1641944300058,
        "stoppedAt": 1641944400058,
        "statusReason": "Received status from SageMaker: Training job completed"
      }
    ],
    "createdAt": 1641944200058,
    "jobArn": "arn:aws-cn:batch:{{us-east-1}}:{{123456789012}}:service-job/4c7599ae-0a82-49aa-ba5a-4727fcce14a8",
    "jobId": "0bb17543-ece6-4480-b1a7-a556d344746b",
    "jobName": "event-test",
    "jobQueue": "arn:aws-cn:batch:{{us-east-1}}:{{123456789012}}:job-queue/HappyPathJobQueue",
    "latestAttempt": {
      "serviceResourceId": {
        "name": "TrainingJobArn",
        "value": "arn:aws:sagemaker:us-east-1:123456789012:training-job/AWSBatchmy-training-job88b610a69aa8380ca5b0a7aba3f81cb8"
      }
    },
    "serviceJobType": "SAGEMAKER_TRAINING",
    "startedAt": 1641944300058,
    "status": "SUCCEEDED",
    "statusReason": "Received status from SageMaker: Training job completed",
    "stoppedAt": 1641944400058,
    "timeoutConfig": {
      "attemptDurationSeconds": 60
    }
  }
}
```