You need to be enrolled in the Microsoft Partner Network (MPN) enrollment to sign up to be a rhipe Microsoft CSP indirect reseller.
If you are selling to academic customers, you also need to enrol and become a Microsoft Authorized Education Partner (AEP). More details about how to become an AEP partner can be found here.
There is no minimum revenue or training requirement required to become a Microsoft CSP Partner, although by achieving at least a Silver or Gold Microsoft Competency will help you earn more incentives, receive IUR and gain Microsoft support to make your business more profitable.
For more information about onboarding, please go to: http://info.rhipe.com/onboarding/solution-products/microsoft-csp/