Trigger
In n8n, a trigger node runs the process when a condition is met. Production workflows require at least one trigger. In Zapier, the trigger is the event that starts the Zap.
On this page
Source content checked . English translation published 2026-10-27.
In business automation
The trigger defines when a process starts, not what it does next. Choosing between an event, a schedule, and polling affects delays, request volume, and the possibility of receiving the same event twice.
Examples
These examples illustrate a possible workflow. Adapt the connections and rules to your own systems.
Business process example
When a form is received, the trigger starts a process that checks for an email address and then creates a follow-up task. Submitting the same form twice verifies that two tasks are not created for the same inquiry.
Relevant tools
- Zapier
- Every Zap starts with a trigger; the event type and app determine how the data is received.
What to check
- Check whether the trigger returns only new events or also existing records when it is first connected.