diff --git a/scripts/verify-release-candidate.mjs b/scripts/verify-release-candidate.mjs
index 88e137d..317e88e 100644
--- a/scripts/verify-release-candidate.mjs
+++ b/scripts/verify-release-candidate.mjs
@@ -1,4 +1,4 @@
-import { spawn } from 'node:child_process';
+import { spawn, spawnSync } from 'node:child_process';
 import { mkdirSync } from 'node:fs';
 import { chromium } from 'playwright';
 
@@ -9,6 +9,7 @@ let serverProcess;
 let browser;
 
 try {
+  runCommand('node', ['scripts/verify-campaign-flow-data.mjs']);
   mkdirSync(screenshotDir, { recursive: true });
   serverProcess = await ensurePreviewServer(targetUrl);
 
@@ -465,3 +466,10 @@ function assert(condition, message) {
     throw new Error(message);
   }
 }
+
+function runCommand(command, args) {
+  const result = spawnSync(command, args, { cwd: process.cwd(), stdio: 'inherit' });
+  if (result.status !== 0) {
+    throw new Error(`Command failed: ${command} ${args.join(' ')}`);
+  }
+}