Make sure that you send the test email to the email address in your CRM (an email address in the **Clients** section). If this email address is selected in the **Custom emails** section, the link will not work, even if this email address is available in CRM. 

<figure><img src="/api/docs/image/54176ad07f146575310749eba44b7c2f42c1b327/troubleshooting/campaign/_gfx/test-email-recipients.png" class="full" alt="Test email section"><figcaption> Test email section in the email wizard </figcaption></figure>