--- title: "Overview" slug: "unlock-content-event-triggers" updated: 2026-02-09T22:38:42Z published: 2026-02-09T22:38:42Z canonical: "support.lightspeedvt.com/unlock-content-event-triggers" --- > ## Documentation Index > Fetch the complete documentation index at: https://support.lightspeedvt.com/llms.txt > Use this file to discover all available pages before exploring further. # Overview ## What is a Catch Hook? When we use the phrase "Catch Hook", we are referring to a mechanism designed to receive and process incoming webhook notifications or events. Catch Hooks can be configured to perform various actions that can be categorized under to main functions: - Email Notifications - Update User Access ### Main Functions and Triggers **Email Notifications** Catch Hooks can send automated emails to users based on the following triggers: - Course Completed - Chapter Completed - No Sign In - Start Date - Expiration These notifications allow you to communicate with users proactively, for example, emailing users who haven’t signed in recently to encourage them to resume training or congradulating them for completing a course or chapter. **Update User Access** This function allows Catch Hooks to modify a user’s content access, typically to unlock new training based on completed prerequisites, but you can also reset a user's welcome video. - Course Completed - Chapter Completed This enables automated learning paths such as: Complete Course A → Unlock Course B → Unlock Course C → Unlock Course D