How do I know if I qualify for a SLA Service Credit?
You are eligible for a SLA credit for Amazon OpenSearch Service under the Amazon OpenSearch Service SLA if multi-AZ domains on Amazon OpenSearch Service have a Monthly Uptime Percentage of less than 99.9% during any monthly billing cycle.
For full details on all of the terms and conditions of the SLA, as well as details on how to submit a claim, please see the Amazon OpenSearch Service SLA details page.