Yes, you can use an anchor ID in a HubSpot call-to-action Link URL:
- Navigate to Content > Calls-to-Action.
- In your CTA dashboard, click the Action button to the right of a CTA to edit it, or click Create a new CTA to create a new CTA.
- After setting up your CTA design, click Next in the lower-right corner to navigate to the Options tab.
- In the Enter URL text box, enter your link and include "#" with your anchor ID at the end of the URL.
To learn how to add an anchor ID to your page, check out this article.