diff --git a/modules/erp/import-integration/shopify-webhook-worker.php b/modules/erp/import-integration/shopify-webhook-worker.php
index 70127c6..45f84e1 100644
--- a/modules/erp/import-integration/shopify-webhook-worker.php
+++ b/modules/erp/import-integration/shopify-webhook-worker.php
@@ -132,19 +132,21 @@ function shopify_webhook_worker_run(PDO $pdo, array $env, int $limit): array
     }
 }
 
-$argvLimit = 20;
-foreach ($argv as $argument) {
-    if (str_starts_with($argument, '--limit=')) {
-        $argvLimit = max(1, min(100, (int) substr($argument, 8)));
+if (PHP_SAPI === 'cli' && realpath($_SERVER['SCRIPT_FILENAME'] ?? '') === __FILE__) {
+    $argvLimit = 20;
+    foreach ($argv as $argument) {
+        if (str_starts_with($argument, '--limit=')) {
+            $argvLimit = max(1, min(100, (int) substr($argument, 8)));
+        }
+    }
+
+    try {
+        $env = expand_env_values(parse_env_file(__DIR__ . '/../../../.env'));
+        $pdo = connect_database($env);
+        echo json_encode(shopify_webhook_worker_run($pdo, $env, $argvLimit), JSON_UNESCAPED_SLASHES) . PHP_EOL;
+        exit(0);
+    } catch (Throwable $error) {
+        fwrite(STDERR, $error->getMessage() . PHP_EOL);
+        exit(1);
     }
 }
-
-try {
-    $env = expand_env_values(parse_env_file(__DIR__ . '/../../../.env'));
-    $pdo = connect_database($env);
-    echo json_encode(shopify_webhook_worker_run($pdo, $env, $argvLimit), JSON_UNESCAPED_SLASHES) . PHP_EOL;
-    exit(0);
-} catch (Throwable $error) {
-    fwrite(STDERR, $error->getMessage() . PHP_EOL);
-    exit(1);
-}