Amazon Messaging (SQS, SNS) Service Level Agreement
Last Updated: March 19, 2019
This Amazon Messaging Service Level Agreement (“SLA”) is a policy governing the use of the Included Services (listed below) and applies separately to each account using the Included Services. In the event of a conflict between the terms of this SLA and the terms of the AWS Customer Agreement or other agreement with us governing your use of our Services (the “Agreement”), the terms and conditions of this SLA apply, but only to the extent of such conflict. Capitalized terms used herein but not defined herein shall have the meanings set forth in the Agreement.
- Amazon Simple Notification Service (“SNS”)
- Amazon Simple Queue Service (“SQS”)
AWS will use commercially reasonable efforts to make the Included Services each available with a Monthly Uptime Percentage for each AWS region, during any monthly billing cycle, of at least 99.9% (the “Service Commitment”). In the event any of the Included Services do not meet the Service Commitment, you will be eligible to receive a Service Credit as described below.
Service Credits are calculated as a percentage of the total charges paid by you for the applicable Included Service in the applicable AWS region for the monthly billing cycle in which the Monthly Uptime Percentage fell within the ranges set forth in the table below:
|Monthly Uptime Percentage||Service Credit Percentage|
Less than 99.9% but greater than or equal to 99.0%
|Less than 99.0% but greater than or equal to 95.0%||25%|
|Less than 95.0%||100%|
We will apply any Service Credits only against future payments otherwise due from you for the applicable Included Service. At our discretion, we may issue the Service Credits to the credit card you used to pay for the billing cycle in which the unavailability occurred. Service Credits will not entitle you to any refund or other payment from AWS. Service Credits will be applicable and issued only if the credit amount for the applicable monthly billing cycle is greater than one dollar ($1 USD). Service Credits may not be transferred or applied to any other account. Unless otherwise provided in the Agreement, your sole and exclusive remedy for any unavailability or non-performance or other failure by us to provide the Included Services is the receipt of Service Credits (if eligible) in accordance with the terms of this SLA.
Credit Request and Payment Procedures
To receive Service Credits, you will need to submit a claim by opening a case in the AWS Support Center. To be eligible, the credit request must be received by us by the end of the second billing cycle after which the incident occurred and must include:
(i) the words “SLA Credit Request” in the subject line;
(ii) the billing cycle and AWS regions with respect to which you are claiming Service Credits, together with the Monthly Uptime Percentage for that AWS region for the billing cycle and the specific dates, times, and Availabilities for each 5-minute interval with less than 100% Availability in that AWS region throughout the billing cycle;
(iii) your Request logs that document the errors for your claimed outage (any confidential or sensitive information in these logs should be removed or replaced with asterisks).
If the Monthly Uptime Percentage of such credit request is confirmed by us and is less than the Service Commitment, then we will issue the Service Credits to you within one billing cycle following the month in which the credit request occurred. Your failure to provide the credit request and other information as required above will disqualify you from receiving Service Credits.
Messaging SLA Exclusions
The Service Commitment does not apply to any unavailability, suspension or termination of an Included Service, or any other Included Service performance issues: (i) caused by factors outside of our reasonable control, including any force majeure event or Internet access or related problems beyond the demarcation point of the applicable Included Service; (ii) that result from any voluntary actions or inactions from you or any third party (e.g. scaling of provisioned capacity, misconfiguring security groups, VPC configurations or credential settings, disabling encryption keys or making the encryption keys inaccessible, etc.); (iii) that result from you not following the best practices described in the applicable Included Service’s Developer Guide on the AWS Site; (iv) that result from your equipment, software or other technology and/or third party equipment, software or other technology (other than third party equipment within our direct control); or (v) arising from our suspension or termination of your right to use the applicable Included Service in accordance with the Agreement (collectively, the “Messaging SLA Exclusions”).
If availability is impacted by factors other than those explicitly used in our Monthly Uptime Percentage calculation, then we may issue a Service Credit considering such factors at our discretion.
- “Availability” is calculated for each 5-minute interval as the percentage of Requests processed by the applicable Included Service that do not fail with Errors and relate solely to the provisioned Included Service. If you did not make any Requests in a given 5-minute interval, that interval is assumed to be 100% available.
- An “Error” is any Request that returns a 500 or 503 error code.
- “Monthly Uptime Percentage” for a given AWS region is calculated as the average of the Availability for all 5-minute intervals in a monthly billing cycle. Monthly Uptime Percentage measurements exclude downtime resulting directly or indirectly from any Messaging SLA Exclusion (defined above).
- A “Request” is, with respect to:
- SNS: an API request to SNS by directly calling the Publish API or triggered by a supported event source; and
- SQS: invocation of a SQS Send, Receive, or Delete API.
- A “Service Credit” is a dollar credit, calculated as set forth above, that we may credit back to an eligible account.
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