Amplify Hosting uses webhooks to automatically initiate a build after a new commit to your Git repository. Amplify uses one unified webhook for all applications associated with a single repository. This ensures that the Amplify apps associated with the repository receive updates and triggers, without being limited by your Git provider's webhook restrictions. To learn more about the unified webhooks feature, see Unified webhooks for Git repositories.
You can also intiate a build without a commit to your Git repository by creating an incoming webhook that you provide to a headless CMS tool, such as Contentful or GraphCMS, or a service such as Zapier. For instructions, see Creating an incoming webhook to start a build.
