Create a Partner / Admin user role that can login to a customer's Dynamics CRM Online account without needing a paid user subscription.
This would allow Partners or IT Admin to better support Dynamics CRM Online without requiring a paid user subscription.
Access would be governed by the customer.
A customer's success with CRM Online is oftentimes dependent on the Partner Communities involvement. A Partner / Admin user would allow for better CRM Online support which would result in less attrition.