Previews and auto-delete

Enable pull request previews

In the Amplify app settings (previews / branch settings - label varies slightly by Console revision):

1. Enable Pull request previews (or equivalent) for the connected repository
2. Ensure webhooks from the GitHub AppGitHub App
   Amplify GitHub App - OAuth install that lets Amplify clone your repo and receive push/PR webhooks without a long-lived personal access token. can reach Amplify (the connect flow normally configures this)

Open a test PR (next page) and confirm a URL like:

https://pr-<number>.<app-id>.amplifyapp.com

That is a PR previewPR preview
Temporary Amplify hosting URL created for a pull request so you can review the built site before merge..

Enable branch auto-delete

Turn on branch auto-deletebranch auto-delete
Amplify setting that removes a preview branch and its URL when the Git branch is deleted. so that when the Git feature branch is deleted, Amplify removes the corresponding preview hosting.

Note

Auto-delete cleans preview branches. It does not delete main, staging, or the Amplify application. Full cleanup is in Teardown.

Why both settings matter

Setting	Benefit
PR previews	Review the real build before merge
Branch auto-delete	Avoid orphaned preview hosts and extra build noise

Next: Prove the flow.