# Webhooks Webhooks are crucial for a successful integration with Switch VTN, and the only way you'll receive automatic updates about changes that are happening within the Switch VTN. In case your organization decides to not use webhooks, your only option would be to pull the information directly from the Switch VTN API (e.g. pull information related to conditional agreements such as limit requests). The structure and the types used are defined under the subscriptions endpoint of the VTN API [reference](/openadr-3/api-reference/test/subscriptions.md). --- # 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://developer.switchmarket.se/openadr-3/webhooks.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.