Power Automate Trigger Reference

Every flow starts with a trigger, and getting the trigger right is half the battle. This is my dedicated reference for Power Automate triggers, kept separate from the action reference because triggers behave in their own particular ways. Here you'll find a deep dive into one trigger at a time, explaining how it fires, what data it hands you, and the best practices and limitations worth knowing before you rely on it. I cover the classic "Manually trigger a flow" trigger for on-demand runs, event-driven starters like the "When a new response is submitted" trigger for Microsoft Forms, and the "When an email is flagged" trigger for Office 365 Outlook. For Dataverse builders I explain the "When a row is added, modified or deleted" trigger and the settings that decide when it actually runs, plus the concurrency and trigger-condition tricks daily users miss.