diff --git a/app/javascript/react-components/src/components/ChatwootProvider.jsx b/app/javascript/react-components/src/components/ChatwootProvider.jsx
index 5a4b58f1f..cba5f3148 100644
--- a/app/javascript/react-components/src/components/ChatwootProvider.jsx
+++ b/app/javascript/react-components/src/components/ChatwootProvider.jsx
@@ -53,6 +53,12 @@ export const ChatwootProvider = ({
   };
 
   function initializeChatwootGlobals() {
+    // Log the build SHA so we can confirm which build a customer is running.
+    // eslint-disable-next-line no-console
+    console.log(
+      `[Chatwoot] react-components build ${import.meta.env.VITE_BUILD_SHA} (${import.meta.env.VITE_BUILD_TIME})`
+    );
+
     // Register Web Components
     registerVueWebComponents();
 
diff --git a/vite.config.ts b/vite.config.ts
index 46507f540..8ea65602b 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -21,9 +21,26 @@ We need to edit the `asset:precompile` rake task to include the SDK in the preco
 import { defineConfig } from 'vite';
 import ruby from 'vite-plugin-ruby';
 import path from 'path';
+import { execFileSync } from 'child_process';
 import vue from '@vitejs/plugin-vue';
 import react from '@vitejs/plugin-react';
 
+const buildSha = (() => {
+  // Prefer CI-provided commit SHA, fall back to local git.
+  const fromEnv =
+    process.env.GIT_SHA ||
+    process.env.GITHUB_SHA ||
+    process.env.HEROKU_SLUG_COMMIT;
+  if (fromEnv) return fromEnv.slice(0, 10);
+  try {
+    return execFileSync('git', ['rev-parse', '--short=10', 'HEAD'])
+      .toString()
+      .trim();
+  } catch (e) {
+    return 'unknown';
+  }
+})();
+
 const isLibraryMode = process.env.BUILD_MODE === 'library';
 const uiMode = process.env.BUILD_MODE === 'ui';
 const reactComponentMode = process.env.BUILD_MODE === 'react-components';
@@ -98,6 +115,7 @@ export default defineConfig({
   plugins: plugins,
   define: {
     'import.meta.env.VITE_BUILD_TIME': JSON.stringify(buildTime),
+    'import.meta.env.VITE_BUILD_SHA': JSON.stringify(buildSha),
     'process.env.NODE_ENV': JSON.stringify('production'),
   },
   build: {