How do I route one event to push, SMS, and email?

You can route one incoming event to multiple delivery channels by using a fan-out / branch pattern:

Basic idea

1. Receive the event once
2. Duplicate or branch it
3. Send one branch to:
   • Push
   • SMS
   • Email

Common ways to do it

1) In your application code

If you control the event processor, just call all three channel handlers from the same event:

handleEvent(event) {
  sendPush(event);
  sendSMS(event);
  sendEmail(event);
}

If you want reliability, do this asynchronously through a queue rather than inline.

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2) Using a message broker / workflow

Publish the event to a topic/stream, then have three subscribers:

• Push worker subscribes and sends push
• SMS worker subscribes and sends SMS
• Email worker subscribes and sends email

This is the cleanest approach for scaling and retry handling.

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3) Using an automation / notification platform

If you’re using a tool that supports workflows, configure the event trigger with multiple actions:

• Action 1: Push notification
• Action 2: SMS
• Action 3: Email

Some tools call this:

• multi-channel notification
• branching
• parallel actions
• fan-out

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Best practice

To avoid one channel failure blocking the others:

• run each send independently
• add retries per channel
• log failures separately
• optionally use a queue for each channel

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If you tell me what system/platform you’re using (e.g. AWS SNS, Firebase, Twilio, OneSignal, Kafka, Segment, Zapier, custom code, etc.), I can give you the exact setup or code.