Update deploy-manage/deploy/elastic-cloud/differences-from-other-elasticsearch-offerings.md

Co-authored-by: shainaraskas <[email protected]>

Author: eedugon

deploy-manage/deploy/elastic-cloud/differences-from-other-elasticsearch-offerings.md

@@ -144,7 +144,7 @@ This table compares Security capabilities between {{ech}} deployments and Server
 | **[Kibana Alerts](/deploy-manage/monitor/monitoring-data/configure-stack-monitoring-alerts.md)** | ✅ | ✅ | |
 | **Kibana navigation** | Standard layout | Different layout | UI differences in Security projects |
 | **[LogsDB](/manage-data/data-store/data-streams/logs-data-stream.md)** | Optional | ✅ | - Enabled by default <br>- Cannot be disabled |
-| **[Native realm authentication](/deploy-manage/users-roles/cluster-or-deployment-auth/native.md)** | ✅ | ❌ | Only API key-based authentication is supported |
+| **[Native realm authentication](/deploy-manage/users-roles/cluster-or-deployment-auth/native.md)** | ✅ | ❌ | Only API key-based authentication is supported at the project level. SAML authentication is available through [organization-level SSO](/deploy-manage/users-roles/cloud-organization.md). |
 | **Role-based access control** | ✅ | Limited | Core RBAC functionality supported |
 | **SIEM capabilities** | ✅ | ✅ | Core functionality supported |