# ListAutomationEventSteps
<a name="API_automation_ListAutomationEventSteps"></a>

Lists the steps for a specific automation event. You can only list steps for events created within the past year. 

## Request Syntax
<a name="API_automation_ListAutomationEventSteps_RequestSyntax"></a>

```
{
   "eventId": "string",
   "maxResults": number,
   "nextToken": "string"
}
```

## Request Parameters
<a name="API_automation_ListAutomationEventSteps_RequestParameters"></a>

For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

The request accepts the following data in JSON format.

 ** [eventId](#API_automation_ListAutomationEventSteps_RequestSyntax) **   <a name="computeoptimizer-automation_ListAutomationEventSteps-request-eventId"></a>
 The ID of the automation event.   
Type: String  
Pattern: `[0-9A-Za-z]{16}`   
Required: Yes

 ** [maxResults](#API_automation_ListAutomationEventSteps_RequestSyntax) **   <a name="computeoptimizer-automation_ListAutomationEventSteps-request-maxResults"></a>
The maximum number of automation event steps to return in a single response. Valid range is 1-1000.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 100.  
Required: No

 ** [nextToken](#API_automation_ListAutomationEventSteps_RequestSyntax) **   <a name="computeoptimizer-automation_ListAutomationEventSteps-request-nextToken"></a>
A token used for pagination to retrieve the next set of results when the response is truncated.  
Type: String  
Pattern: `[A-Za-z0-9+/=]+`   
Required: No

## Response Syntax
<a name="API_automation_ListAutomationEventSteps_ResponseSyntax"></a>

```
{
   "automationEventSteps": [ 
      { 
         "completedTimestamp": number,
         "estimatedMonthlySavings": { 
            "afterDiscountSavings": number,
            "beforeDiscountSavings": number,
            "currency": "string",
            "savingsEstimationMode": "string"
         },
         "eventId": "string",
         "resourceId": "string",
         "startTimestamp": number,
         "stepId": "string",
         "stepStatus": "string",
         "stepType": "string"
      }
   ],
   "nextToken": "string"
}
```

## Response Elements
<a name="API_automation_ListAutomationEventSteps_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [automationEventSteps](#API_automation_ListAutomationEventSteps_ResponseSyntax) **   <a name="computeoptimizer-automation_ListAutomationEventSteps-response-automationEventSteps"></a>
 The list of steps for the specified automation event.   
Type: Array of [AutomationEventStep](API_automation_AutomationEventStep.md) objects

 ** [nextToken](#API_automation_ListAutomationEventSteps_ResponseSyntax) **   <a name="computeoptimizer-automation_ListAutomationEventSteps-response-nextToken"></a>
A token used for pagination. If present, indicates there are more results available and can be used in subsequent requests.  
Type: String  
Pattern: `[A-Za-z0-9+/=]+` 

## Errors
<a name="API_automation_ListAutomationEventSteps_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** AccessDeniedException **   
 You do not have sufficient permissions to perform this action.   
HTTP Status Code: 400

 ** ForbiddenException **   
 You are not authorized to perform this action.   
HTTP Status Code: 400

 ** InternalServerException **   
 An internal error occurred while processing the request.   
HTTP Status Code: 500

 ** InvalidParameterValueException **   
 One or more parameter values are not valid.   
HTTP Status Code: 400

 ** OptInRequiredException **   
 The account must be opted in to Compute Optimizer Automation before performing this action.   
HTTP Status Code: 400

 ** ResourceNotFoundException **   
 The specified resource was not found.   
HTTP Status Code: 400

 ** ServiceUnavailableException **   
 The service is temporarily unavailable.   
HTTP Status Code: 500

 ** ThrottlingException **   
 The request was denied due to request throttling.   
HTTP Status Code: 400

## See Also
<a name="API_automation_ListAutomationEventSteps_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/compute-optimizer-automation-2025-09-22/ListAutomationEventSteps) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/compute-optimizer-automation-2025-09-22/ListAutomationEventSteps) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/compute-optimizer-automation-2025-09-22/ListAutomationEventSteps) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/compute-optimizer-automation-2025-09-22/ListAutomationEventSteps) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/compute-optimizer-automation-2025-09-22/ListAutomationEventSteps) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/compute-optimizer-automation-2025-09-22/ListAutomationEventSteps) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/compute-optimizer-automation-2025-09-22/ListAutomationEventSteps) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/compute-optimizer-automation-2025-09-22/ListAutomationEventSteps) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/compute-optimizer-automation-2025-09-22/ListAutomationEventSteps) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/compute-optimizer-automation-2025-09-22/ListAutomationEventSteps)