Which privacy policy link should I enter?

In your profile, paste a link to a page with information about how your prospects' personal data is processed. For example https://www.yourdomain.com/privacy-policy.

Make sure the page is publicly accessible and contains the relevant information. Your website's home page address alone isn't enough.

If you don't have such a page, use the text the app creates for the campaign page. Fill in your details, i.e. your name, company ID (IČO) and email, or replace it with the text from your own website.