Step 4: Specify Sitemap Verification File in your Yahoo Store
- Open a new browser window.
- Log into your Yahoo Store Manager
- Go to the 'Search Engines' page, under the 'Promotion' section.
- In the box labeled "Google Sitemap Verification File", paste the file name that you copied from the Verify Your Site page.
- Click 'Done' to save the settings.
- Publish your Order Settings.
Reference: Verifying Site Ownership with Google