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.

Adds or removes permission settings for the specified snapshot. You may add or remove specified Amazon Web Services account IDs from a snapshot's list of create volume permissions, but you cannot do both in a single operation. If you need to both add and remove account IDs for a snapshot, you must use multiple operations. You can make up to 500 modifications to a snapshot in a single operation.

Encrypted snapshots and snapshots with Amazon Web Services Marketplace product codes cannot be made public. Snapshots encrypted with your default KMS key cannot be shared with other accounts.

For more information about modifying snapshot permissions, see Share a snapshot in the Amazon Elastic Compute Cloud User Guide.


This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginModifySnapshotAttribute and EndModifySnapshotAttribute.

Namespace: Amazon.EC2
Assembly: AWSSDK.EC2.dll
Version: 3.x.y.z


public virtual Task<ModifySnapshotAttributeResponse> ModifySnapshotAttributeAsync(
         ModifySnapshotAttributeRequest request,
         CancellationToken cancellationToken


Type: Amazon.EC2.Model.ModifySnapshotAttributeRequest

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

Type: System.Threading.CancellationToken

A cancellation token that can be used by other objects or threads to receive notice of cancellation.

Return Value

The response from the ModifySnapshotAttribute service method, as returned by EC2.

Version Information

.NET Core App:
Supported in: 3.1

.NET Standard:
Supported in: 2.0

.NET Framework:
Supported in: 4.5

See Also