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A trigger is the first node in every Odin workflow. Without a trigger, a workflow cannot run. Triggers determine the entry point for execution and make their output variables available to every downstream node.
Every workflow must begin with exactly one trigger. You cannot add more than one trigger to a single workflow.

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Trigger categories

Core

General-purpose triggers for manual runs, scheduled execution, HTTP requests, and file uploads.

Communication

Triggers that fire in response to incoming emails, the end of an Odin-recorded meeting, or a Telegram bot message.

Google

Triggers that react to activity in Google Forms and Google Sheets.

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All triggers at a glance