If you can't find your Zendesk Sell subdomain in your profile settings, you can request an email reminder.
Visit the Login reminder page and enter your email address. You will receive an email with a list of Zendesk subdomains associated with your email address. Make sure to check your spam folder if you don't see the email in your inbox. If you still don't receive it, it might mean there's no account linked to that email address.
To find your Zendesk Sell subdomain, you can check your user profile settings in Sell. If you're already signed in to Sell, navigate to the Sell dashboard and click the Settings icon on the lefthand sidebar. From there, go to your Profile settings…
You can receive your Zendesk Sell subdomain via email by using the Login reminder page. Simply type your email address on the page, and you'll get an email listing the Zendesk subdomains associated with that address. Be sure to check your spam…
To find your Zendesk Sell subdomain in the Admin Center, follow these steps: First, sign in to Sell and go to the Sell dashboard. Click the Settings icon on the lefthand sidebar, then navigate to your Profile settings page and select Edit Profile….