diff --git a/api/bulk_operation.php b/api/bulk_operation.php
index 2783224..27fd7cb 100644
--- a/api/bulk_operation.php
+++ b/api/bulk_operation.php
@@ -3,7 +3,6 @@
 require_once dirname(__DIR__) . '/middleware/RateLimitMiddleware.php';
 RateLimitMiddleware::apply('api');
 
-session_start();
 require_once dirname(__DIR__) . '/config/config.php';
 require_once dirname(__DIR__) . '/helpers/Database.php';
 require_once dirname(__DIR__) . '/models/BulkOperationsModel.php';
diff --git a/api/manage_workflows.php b/api/manage_workflows.php
index 812cc81..628b5ab 100644
--- a/api/manage_workflows.php
+++ b/api/manage_workflows.php
@@ -17,7 +17,7 @@ try {
     require_once dirname(__DIR__) . '/models/AuditLogModel.php';
 
     // Check authentication
-    session_start();
+    if (session_status() === PHP_SESSION_NONE) session_start();
     if (!isset($_SESSION['user']) || !isset($_SESSION['user']['user_id'])) {
         http_response_code(401);
         echo json_encode(['success' => false, 'error' => 'Authentication required']);
@@ -81,13 +81,12 @@ try {
 
             $stmt = $conn->prepare("INSERT INTO status_transitions (from_status, to_status, requires_comment, requires_admin, is_active)
                                     VALUES (?, ?, ?, ?, ?)");
-            $stmt->bind_param('ssiii',
-                $data['from_status'],
-                $data['to_status'],
-                $data['requires_comment'] ?? 0,
-                $data['requires_admin'] ?? 0,
-                $data['is_active'] ?? 1
-            );
+            $wf_from    = $data['from_status'];
+            $wf_to      = $data['to_status'];
+            $wf_comment = (int)($data['requires_comment'] ?? 0);
+            $wf_admin   = (int)($data['requires_admin'] ?? 0);
+            $wf_active  = (int)($data['is_active'] ?? 1);
+            $stmt->bind_param('ssiii', $wf_from, $wf_to, $wf_comment, $wf_admin, $wf_active);
 
             if ($stmt->execute()) {
                 $transitionId = $conn->insert_id;
@@ -120,14 +119,12 @@ try {
             $stmt = $conn->prepare("UPDATE status_transitions SET
                                     from_status = ?, to_status = ?, requires_comment = ?, requires_admin = ?, is_active = ?
                                     WHERE transition_id = ?");
-            $stmt->bind_param('ssiiii',
-                $data['from_status'],
-                $data['to_status'],
-                $data['requires_comment'] ?? 0,
-                $data['requires_admin'] ?? 0,
-                $data['is_active'] ?? 1,
-                $id
-            );
+            $wf_from    = $data['from_status'];
+            $wf_to      = $data['to_status'];
+            $wf_comment = (int)($data['requires_comment'] ?? 0);
+            $wf_admin   = (int)($data['requires_admin'] ?? 0);
+            $wf_active  = (int)($data['is_active'] ?? 1);
+            $stmt->bind_param('ssiiii', $wf_from, $wf_to, $wf_comment, $wf_admin, $wf_active, $id);
 
             $success = $stmt->execute();
             if ($success) {