There are three main options for customer to purchase Azure Global Service:
Pay as You Go (PAYG) Customers pay only for what they use. No minimum quantity or upfront costs. Features flexibility to start or terminate in the Azure Portal. Customers can use PAYG for Azure Services and Azure Marketplace.
Monetary Commitment (MC) Customers allocate funds and pay in advance for Azure Services on their Microsoft Enterprise enrollment. Customers can use MC for Azure Services only.
Azure Plans (Prepay for committed services) Customers pay up front for longer term commitments to specific services or groupings of services(such as Azure Plans). Including non-consumption offers like Azure supports and Pre-configured services like Azure Active Directory. Some suite services like OMS, EMS, IoT suite.