You start and manage customer trials through the Trial Management page, but remember that starting and then managing a trial of Cisco Umbrella involves more than just clicking the Start New Trial button. For the trial workflow, see Understanding the Umbrella Trial Workflow.
Once you start a trial, use the Partner console to manage it. Make sure that your customer is up and running and then monitor their use of Umbrella. Use this data to demonstrate how Umbrella is adding valuable cloud-based protection.