This parameters template demonstrates sending a SMS message directly to a phone number with the Publish SNS Message action:
{ "PhoneNumber": "+61.1234567890", "Message": "Automation with AWS: $event.simpleName with trace ID $event.traceId triggered at $event.timestamp", "MessageAttributes": { "AWS.SNS.SMS.SenderID": { "DataType": "String", "StringValue": "Utoolity" } } }