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This parameters template demonstrates the Start Step Functions Execution action:

Start Step Functions Execution parameters example (escaped manually)

{
  "StateMachineArn": "arn:aws:states:ap-southeast-2:123456789012:stateMachine:sample-AutomationWithAWSQuickstartStepFunctionsStateMachine-UHDE4Y9QTDIN",
  "Input": "{ \"Event\":\"$event.simpleName\", \"Timestamp\": \"$event.timestamp\", \"TraceID\": \"$event.traceId\"}"
}

Start Step Functions Execution parameters example (escaped with utility function)

{
  "StateMachineArn": "arn:aws:states:ap-southeast-2:123456789012:stateMachine:sample-AutomationWithAWSQuickstartStepFunctionsStateMachine-UHDE4Y9QTDIN",
  "Input": "$util.escapeJson('{
    "Event": "$event.simpleName",
    "Timestamp": "$event.timestamp",
    "TraceID": "$event.traceId"
  }')"
}