Guide

1. On the Admin Center tab, go to the left-side panel and click 'Apps and Integrations'.

2. Scroll down to the Apps section, then click 'Zendesk Support Apps'.

3. Tap 'Marketplace' at the top-right corner.

4. Search for 'FreshBooks' and then select 'FreshBooks for Sell' from the provided results.

5. Tap 'Install' afterwards.

6. Following that, enter your Zendesk subdomain and then click 'Install' to proceed.

7. Tap 'Sign In With FreshBooks For Sell' afterwards.

8. Sign in to your active FreshBooks account, then click 'Log In' to proceed.

9. Subsequently, click 'Allow' to grant the necessary permission.

10. Click 'Install' afterwards.

11. After completing these steps, your Zendesk Sell account will be integrated with FreshBooks.