Microsoft’s MPO program is open to any ISV, as long as the following requirements are met:
You have enrolled in the Microsoft AI Cloud Partner Program.
You have created a commercial marketplace account in Partner Center.
Your account is enrolled in the commercial marketplace program.
You have a completed United States tax profile in Partner Center for commercial marketplace. (Availability to customers in the United Kingdom and Canada will follow the U.S. release, with other markets to follow. Selling partners will need tax or VAT profiles to sell to customers in the respective countries.)
The offer you want to sell privately has been published to the marketplace and is publicly transactable.
You're creating a multiparty private offer for a customer that is eligible to purchase multiparty private offers (here are Microsoft’s customer eligibility criteria.)
You have a commercial marketplace developer, manager, or account owner role associated with your marketplace seller ID.