How to Use Segment

Segment is a customer data platform that collects user event data once from your app and routes it to every analytics or marketing tool you use, instead of you integrating each tool separately.

Step 1: Add a source

Install Segment's SDK — web, mobile, or server — in your app. This is where your event data originates before it goes anywhere else.

Step 2: Track events

Call analytics.track() (or the equivalent) at key user actions like signup or purchase, using a consistent naming convention, since this becomes your data's schema across every downstream tool.

Step 3: Identify users

analytics.identify() attaches traits — email, plan, signup date — to a user ID, so downstream tools know who's doing what instead of seeing anonymous, disconnected events.

Step 4: Add a destination

Connect a tool — Google Analytics, Mixpanel, a Slack alert, your data warehouse — as a destination, and Segment starts forwarding the relevant events to it automatically.

Step 5: Use Protocols to enforce a schema

On paid plans, Protocols validates incoming events against a defined schema and blocks or flags ones that don't match, catching bad data before it reaches every connected tool at once.

Where it bites

Because Segment fans one event out to many destinations, a bad or duplicated tracking call doesn't just mess up one report — it pollutes every connected tool simultaneously. Tracking-plan mistakes are more consequential here than when integrating tools one at a time.