AWS SDK Version 3 for .NET
API Reference

AWS services or capabilities described in AWS Documentation may vary by region/location. Click Getting Started with Amazon AWS to see specific differences applicable to the China (Beijing) Region.

Gets recommendations for which reservations to purchase. These recommendations could help you reduce your costs. Reservations provide a discounted hourly rate (up to 75%) compared to On-Demand pricing.

AWS generates your recommendations by identifying your On-Demand usage during a specific time period and collecting your usage into categories that are eligible for a reservation. After AWS has these categories, it simulates every combination of reservations in each category of usage to identify the best number of each type of RI to purchase to maximize your estimated savings.

For example, AWS automatically aggregates your EC2 Linux, shared tenancy, and c4 family usage in the US West (Oregon) Region and recommends that you buy size-flexible regional reservations to apply to the c4 family usage. AWS recommends the smallest size instance in an instance family. This makes it easier to purchase a size-flexible RI. AWS also shows the equal number of normalized units so that you can purchase any instance size that you want. For this example, your RI recommendation would be for c4.large, because that is the smallest size instance in the c4 instance family.


For .NET Core and PCL this operation is only available in asynchronous form. Please refer to GetReservationPurchaseRecommendationAsync.

Namespace: Amazon.CostExplorer
Assembly: AWSSDK.CostExplorer.dll
Version: 3.x.y.z


public abstract GetReservationPurchaseRecommendationResponse GetReservationPurchaseRecommendation(
         GetReservationPurchaseRecommendationRequest request
Type: Amazon.CostExplorer.Model.GetReservationPurchaseRecommendationRequest

Container for the necessary parameters to execute the GetReservationPurchaseRecommendation service method.

Return Value
The response from the GetReservationPurchaseRecommendation service method, as returned by CostExplorer.


DataUnavailableException The requested data is unavailable.
InvalidNextTokenException The pagination token is invalid. Try again without a pagination token.
LimitExceededException You made too many calls in a short period of time. Try again later.

Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms

See Also