# Amazon SNS - New message trigger
The New message trigger monitors a message topic and fetches new messages. Workato processes each message as a new job.
429 RESPONSES
Amazon SNS treats a 429 (Too Many Requests) response as a successful delivery when using the New message trigger. Events that receive a 429 response aren't retried or sent to a Dead Letter Queue (DLQ).
Throttle message delivery using the SNS topic's delivery policy to align with Workato's rate limits and prevent event loss. AWS SNS doesn't treat a 429 as a failure and doesn't trigger retries. You can set the throttlePolicy to maxReceivesPerSecond to control delivery rate. Refer to the AWS SNS documentation (opens new window) for more information.
# Input
| Input field | Description |
|---|---|
| Topic name | Use the drop-down menu to select a message topic. |
| Message format | Choose a message format. The message format determines the trigger output. Refer to the Publish (opens new window) documentation for more information. |
| Message schema | Provide the message schema. This field applies only when you select the JSON message format. |
| Message attributes schema | Enter the message attribute schema, if available. |
# Output
| Output field | Description |
|---|---|
| Type | The type of message. |
| Message ID | A unique message ID. |
| Topic ARN | The Amazon Resource Name (ARN) for the topic. |
| Topic name | The topic name. |
| Subject | The subject parameter specified when the notification was published to the topic. |
| Timestamp | The time (GMT) when the subscription confirmation was sent. |
| Signature version | The version of the Amazon SNS signature used. |
| Signature | The encoded signature. |
| Signing cert URL | The URL to the certificate used to sign the message. |
| Message | The message content. The data type varies based on the selected message format. |
| Message attribute | The message attributes. These vary based on the selected message format. |
Last updated: 5/21/2025, 5:22:32 AM