Update Member Import

app/Models/Corporate.php

@@ -16,7 +16,12 @@ class Corporate extends Model
         'name',
         'welcome_message',
         'help_text',
-        'active'
+        'active',
+        'linking_rules',
+    ];
+
+    protected $casts = [
+        'linking_rules' => 'array',
     ];
 
     public function imports()