Hi Shaun,
You can down their App from App Exchange “Zendesk for Salesforce” and follow up with their Installation Guide.Zendesk’s out-of-the-box Salesforce integration allows Zuora’s Salesforce users to have visibility into customer service tickets. It also empowers Zuora support agents with a 360 view of relevant Salesforce Account and Contact data. We are very pleased to see Zendesk continue to enhance its Salesforce integration.
Thanks.