Amazon Simple Notification Service
API Reference (API Version 2010-03-31)


Deletes a subscription. If the subscription requires authentication for deletion, only the owner of the subscription or the topic's owner can unsubscribe, and an AWS signature is required. If the Unsubscribe call does not require authentication and the requester is not the subscription owner, a final cancellation message is delivered to the endpoint, so that the endpoint owner can easily resubscribe to the topic if the Unsubscribe request was unintended.

This action is throttled at 100 transactions per second (TPS).

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.


The ARN of the subscription to be deleted.

Type: String

Required: Yes


For information about the errors that are common to all actions, see Common Errors.


Indicates that the user has been denied access to the requested resource.

HTTP Status Code: 403


Indicates an internal service error.

HTTP Status Code: 500


Indicates that a request parameter does not comply with the associated constraints.

HTTP Status Code: 400


Indicates that the requested resource does not exist.

HTTP Status Code: 404



Sample Request ?SubscriptionArn=arn%3Aaws%3Asns%3Aus-east-1%3A123456789012%3AMy-Topic%3A80289ba6-0fd4-4079-afb4-ce8c8260f0ca &Action=Unsubscribe &SignatureVersion=2 &SignatureMethod=HmacSHA256 &Timestamp=2010-03-31T12%3A00%3A00.000Z &AWSAccessKeyId=(AWS Access Key ID) &Signature=e8IwhPzuWeMvPDVrN7jUVxasd3Wv2LuO8x6rE23VCv8%3D

Sample Response

<UnsubscribeResponse xmlns=""> <ResponseMetadata> <RequestId>18e0ac39-3776-11df-84c0-b93cc1666b84</RequestId> </ResponseMetadata> </UnsubscribeResponse>

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: