# Triggers - [Automation Flow - Did the Lead receive or open an email?](https://docs.sprinthub.com/en/topics/relate/automation-flows/triggers/automation-flow-did-the-lead-receive-or-open-an-email.md): These triggers are a valuable indicator of lead interest and engagement. When someone takes the initiative to click an email link, it shows interest in the content or offer. - [Automation Flow - Did they visit a landing page?](https://docs.sprinthub.com/en/topics/relate/automation-flows/triggers/automation-flow-did-they-visit-a-landing-page.md): You can automate actions in your flow when a lead visits a page with a specific device. - [Automation Flow - Did they submit a form?](https://docs.sprinthub.com/en/topics/relate/automation-flows/triggers/automation-flow-did-they-submit-a-form.md): You can automate actions in your flow when a lead submits a form. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.sprinthub.com/en/topics/relate/automation-flows/triggers.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.