David Assesment OpenSearch configuration reverts to Elasticsearch7

help/how-to/general/opensearch-config-reverts-to-elasticsearch7.md

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+---
+description: Learn how to resolve an issue where Adobe Commerce uses Elasticsearch7 even when OpenSearch is selected as the search engine.
+---
+
+# OpenSearch configuration falls back to Elasticsearch7
+
+This article describes how to address the **fallback to Elasticsearch7** issue that occurs when OpenSearch is chosen as the search engine in Adobe Commerce, but the application cannot recognize it due to configuration constraints.
+
+## Affected versions
+
+Adobe Commerce on cloud infrastructure  
+Versions **2.4.4 – 2.4.5-p11**
+
+> **Note**  
+> Beginning with Adobe Commerce **2.4.6**, OpenSearch becomes available for selection in non-Cloud environments.
+
+## Issue
+
+After configuring OpenSearch as the search engine, the following message appears in the `var/log/support_report.log` file:`[2024-04-04T00:27:41.212916+00:00] report.ERROR: opensearch search engine doesn't exist. Falling back to elasticsearch7 [] []`
+
+### Steps to reproduce
+
+1. Ensure that OpenSearch is available in your environment.  
+2. Navigate to **Stores > Configuration > Catalog > Catalog Search** and attempt to switch the search engine to OpenSearch.  
+3. Review the search engine field — it continues to show **Elasticsearch7**.  
+4. Open the `var/log/support_report.log` file and locate the fallback error entry:
+   **opensearch search engine doesn't exist. Falling back to elasticsearch7.**
+
+## Resolution
+
+To resolve this behavior, update the deployment configuration so that the search engine is explicitly set to Elasticsearch7.
+
+Modify your `.magento.env.yaml` file and update the `SEARCH_CONFIGURATION` variable to use: `elasticsearch7`
+
+Redeploy the Cloud environment after applying the change.
+
+## Cause
+
+Although Adobe Commerce 2.4.4 – 2.4.5 includes OpenSearch support at the application level, Cloud-based installations during these versions still rely on **Elasticsearch7** as the only supported search engine.
+
+From Adobe Commerce **2.4.6** onward, OpenSearch can be selected within **Catalog Search** settings in non-Cloud setups.  
+In Cloud environments, however, the search engine option is locked because its value is managed within: `app/etc/env.php`
+
+As a result, in earlier versions the system defaults back to Elasticsearch7 even when OpenSearch is configured.