Sometimes you don't know when important data is going to appear on a website. For example, when a report gets published, you want to process it the moment it's out. Until now, the only option was running your full extraction on a frequency until the change appeared.
Triggers fix this. A workflow can now start another one automatically when something happens to its data, with no manual run or external scheduler. Point a lightweight real-time monitor at the page where the report appears, and the moment it's published, the trigger kicks off the full processing in a second workflow.

Open any workflow and go to the Triggers tab in the side panel. Pick what should fire the trigger:
Then pick the workflow to run. Up to five triggers per workflow, and the panel also shows which other workflows trigger this one.
Read the docs for limits and details.