Purchasing a Microsoft Azure Reservation saves you money on the infrastructure charges (compute) for virtual machines or Azure SQL Databases. After purchase you have the following options for adjusting your Microsoft Azure Reservation:
- Changing the Subscription it applies to
- Splitting a single reservation into two reservations
- Adding or changing users who can manage a reservation
- Optimizing for Virtual Machine Size Flexibility or Capacity Priority.
For further information on the Microsoft Azure Reservations, please visit https://docs.microsoft.com/en-us/azure/billing/billing-manage-reserved-vm-instance and https://docs.microsoft.com/en-us/azure/billing/billing-understand-reservation-charges.