To add Bing's conversion code to your HubSpot COS thank you pages follow the below steps:
- Navigate to Content > Landing Pages and click on your thank you page. If your page is published as a website page, navigate to Content > Website Pages.
- Click Edit.
- From the editor, select Settings, and scroll down to Advanced Options. Click on Add Head HTML.
- Paste the code from Bing into the pop-up window.
- Click Save, and then Update or Publish your page.