Amazon OpenSearch Service is a fully-managed solution for interactive log analytics, real-time application monitoring, website search, observability, and more. With a vast customer base, Amazon OpenSearch Service manages hundreds of thousands of clusters and processes trillions of requests monthly. The service provides seamless access for users through SAML-based federation for OpenSearch Dashboards, enabling single sign-on (SSO) on Amazon OpenSearch Service domains using existing identity providers (IdPs) like OneLogin. SAML simplifies the login process by allowing users to access multiple platforms with a single username and password, providing a safer and more convenient online experience. This guide will walk you through integrating OneLogin with OpenSearch Dashboards for a seamless SSO experience, leveraging Amazon OpenSearch Service’s capabilities.