The Sponsor Team is typically the Team that provided technology for the Customer and is paying for that Customer’s support. All communications with Customers, such as email notifications, get labeled with the Sponsor Team—this allows Organizations who provide support on behalf of other Organizations to create a truly private labeled experience.
The Owner Team is the Team working on resolving the Customer’s issue. If your Organization does not use or provide outside services for Customer support, the Sponsor and Owner Team will typically be the same.
Both the Sponsor and Owner Teams have a stake in the Customer's success and can access Issue information for that Customer. If you're using Boomtown for any support services, Boomtown will be the Owner Team and your Organization will be the Sponsor Team.