AWS Express State Machine cant see input/output on the console

Question

I have enabled Cloudwatch logs for the express state machine. I can see the executions and its events(ExecutionStarted, LambdaFunctionStarted etc) in the console, but there is no input/output details for task state in these events. Lambda functions in the state machine works as expected with input/outputs and I can see inputs in the function logs.

Whenever I created a standard state machine all input/outputs available in for each state in the console.

I could not find any details about this issue in the docs(besides enabling Cloudwatch logs which I enabled). Is this how express state machine works or additional configuration needed to see input/output values?

Answer 1

There is a setting in the CloudWatch logs configuration for Step Functions to control whether the state input and output data is included in the logged events.

You can see this in the API Spec for CreateStateMachine below. The property in question is includeExecutionData.

{
   "definition": "string",
   "loggingConfiguration": { 
      "destinations": [ 
         { 
            "cloudWatchLogsLogGroup": { 
               "logGroupArn": "string"
            }
         }
      ],
      "includeExecutionData": boolean,
      "level": "string"
   },
   "name": "string",
   "roleArn": "string",
   "tags": [ 
      { 
         "key": "string",
         "value": "string"
      }
   ],
   "tracingConfiguration": { 
      "enabled": boolean
   },
   "type": "string"
}

This is how it would look in the console.

If you want that data to be included, you need to set that to True.