diff --git a/server/src/Mail/CustomerCredentialsMail.php b/server/src/Mail/CustomerCredentialsMail.php
index af197524e..331fd564f 100644
--- a/server/src/Mail/CustomerCredentialsMail.php
+++ b/server/src/Mail/CustomerCredentialsMail.php
@@ -73,8 +73,10 @@ public function content(): Content
     private function getCustomerPortalAccessUrl(): string
     {
         $customerPortalConfig = Setting::lookupForCompany($this->customer->company_uuid, 'customer-portal-config');
-        $accessUrlSlug        = data_get($customerPortalConfig, 'accessUrlSlug', 'customer-portal');
+        $accessUrlSlug        = data_get($customerPortalConfig, 'accessUrlSlug');
 
-        return Utils::consoleUrl($accessUrlSlug ?: 'customer-portal');
+        // The portal resolves a company's access slug under /customer-access/{slug};
+        // without one, send the customer to the portal's own sign-in route.
+        return Utils::consoleUrl($accessUrlSlug ? 'customer-access/' . $accessUrlSlug : 'customer-portal');
     }
 }
diff --git a/server/tests/NotificationAndMailContractsTest.php b/server/tests/NotificationAndMailContractsTest.php
index 8539b5620..0e3e01016 100644
--- a/server/tests/NotificationAndMailContractsTest.php
+++ b/server/tests/NotificationAndMailContractsTest.php
@@ -704,5 +704,5 @@ public function track(Order $order, mixed $options): array
 
     $content = fleetOpsNotificationWithEnvironment(fn () => (new CustomerCredentialsMail('plain-secret', $customer))->content());
 
-    expect($content->with['customerPortalUrl'])->toBe('https://console.fleetbase.test/acme-portal');
+    expect($content->with['customerPortalUrl'])->toBe('https://console.fleetbase.test/customer-access/acme-portal');
 })->with([null, 'other-company']);