A trigger is the event that starts a Zap. Once you’ve set up a Zap, Zapier will monitor for that trigger event.
You want to send a Slack direct message to yourself every time you receive a new email in Gmail. In this workflow, the trigger would be the new email in Gmail.
There are two types of triggers:
- Polling Trigger: the majority of triggers are polling triggers. When using a polling trigger, Zapier will check for new data from your trigger every 1 to 15 minutes in order to start your workflow, depending on your subscription plan.
- Instant Trigger: when using an instant trigger, your trigger app will send Zapier an instant notification whenever there's new data. Zaps with instant triggers are labeled Instant on your dashboard.
Zapier relies on a few methods to make sure that your Zap does not trigger multiple times for a single "new" item. Learn more about how triggers are deduplicated in Zaps.