diff --git a/db/migrations/20251125110000_create_warehouse_project.php b/db/migrations/20251125110000_create_warehouse_project.php
index c8f4c0508..7a59b93c9 100644
--- a/db/migrations/20251125110000_create_warehouse_project.php
+++ b/db/migrations/20251125110000_create_warehouse_project.php
@@ -5,58 +5,56 @@ use Phinx\Migration\AbstractMigration;
 
 final class CreateWarehouseProject extends AbstractMigration
 {
-    public function change(): void
-    {
-        if ($this->getEnvironment() == "thetool") {
-            // Main Project Table
-            $projects = $this->table('WarehouseProject');
-            $projects->addColumn('projectNumber', 'string', ['limit' => 20, 'comment' => 'XP-YYYY-NNNN'])
-                ->addColumn('title', 'string', ['limit' => 255])
-                ->addColumn('description', 'text', ['null' => true])
-                ->addColumn('startDate', 'integer', ['null' => true])
-                ->addColumn('endDate', 'integer', ['null' => true])
-                ->addColumn('status', 'enum', ['values' => ['new', 'wip', 'finished', 'cancelled'], 'default' => 'new'])
-                ->addColumn('financials', 'decimal', ['precision' => 10, 'scale' => 2, 'default' => 0.00])
-                ->addColumn('storageLocation', 'string', ['limit' => 255, 'null' => true])
-                ->addColumn('externalTeam', 'text', ['null' => true, 'comment' => 'Free text for external participants'])
-                ->addColumn('createdFromOrderId', 'integer', ['null' => true])
-                ->addColumn('createBy', 'integer')
-                ->addColumn('create', 'integer')
-                ->addIndex(['projectNumber'], ['unique' => true])
-                ->create();
+public function change(): void
+{
+    if ($this->getEnvironment() == "thetool") {
+        // Main Project Table
+        $projects = $this->table('WarehouseProject');
+        $projects->addColumn('projectNumber', 'string', ['limit' => 20, 'comment' => 'XP-YYYY-NNNN'])
+            ->addColumn('title', 'string', ['limit' => 255])
+            ->addColumn('description', 'text', ['null' => true])
+            ->addColumn('startDate', 'integer', ['null' => true])
+            ->addColumn('endDate', 'integer', ['null' => true])
+            ->addColumn('status', 'enum', ['values' => ['new', 'wip', 'finished', 'cancelled'], 'default' => 'new'])
+            ->addColumn('financials', 'decimal', ['precision' => 10, 'scale' => 2, 'default' => 0.00])
+            ->addColumn('storageLocation', 'string', ['limit' => 255, 'null' => true])
+            ->addColumn('externalTeam', 'text', ['null' => true, 'comment' => 'Free text for external participants'])
+            ->addColumn('createdFromOrderId', 'integer', ['null' => true, 'signed' => false]) // FIX: Likely needs to match Order ID
+            ->addColumn('createBy', 'integer', ['signed' => false]) // FIX: Likely references a User ID
+            ->addColumn('create', 'integer')
+            ->addIndex(['projectNumber'], ['unique' => true])
+            ->create();
 
-            // Tasks Table
-            $tasks = $this->table('WarehouseProjectTask');
-            $tasks->addColumn('projectId', 'integer')
-                ->addColumn('parentTaskId', 'integer', ['null' => true])
-                ->addColumn('title', 'string', ['limit' => 255])
-                ->addColumn('description', 'text', ['null' => true])
-                ->addColumn('status', 'enum', ['values' => ['todo', 'in_progress', 'done'], 'default' => 'todo'])
-                ->addColumn('assignedUserId', 'integer', ['null' => true])
-                ->addColumn('order', 'integer', ['default' => 0])
-                ->addColumn('createBy', 'integer')
-                ->addColumn('create', 'integer')
-                ->addForeignKey('projectId', 'WarehouseProject', 'id', ['delete' => 'CASCADE', 'update' => 'CASCADE'])
-                ->create();
+        // Tasks Table
+        $tasks = $this->table('WarehouseProjectTask');
+        $tasks->addColumn('projectId', 'integer', ['signed' => false]) // <--- FIX HERE
+            ->addColumn('parentTaskId', 'integer', ['null' => true, 'signed' => false]) // FIX: Good practice for self-referencing FKs
+            ->addColumn('title', 'string', ['limit' => 255])
+            ->addColumn('description', 'text', ['null' => true])
+            ->addColumn('status', 'enum', ['values' => ['todo', 'in_progress', 'done'], 'default' => 'todo'])
+            ->addColumn('assignedUserId', 'integer', ['null' => true, 'signed' => false]) // FIX: Matches User ID
+            ->addColumn('order', 'integer', ['default' => 0])
+            ->addColumn('createBy', 'integer', ['signed' => false]) // FIX
+            ->addColumn('create', 'integer')
+            ->addForeignKey('projectId', 'WarehouseProject', 'id', ['delete' => 'CASCADE', 'update' => 'CASCADE'])
+            ->create();
 
-            // Project Members (Internal Team)
-            $members = $this->table('WarehouseProjectMember');
-            $members->addColumn('projectId', 'integer')
-                ->addColumn('userId', 'integer')
-                ->addColumn('role', 'string', ['limit' => 50, 'null' => true])
-                ->addColumn('create', 'integer')
-                ->addForeignKey('projectId', 'WarehouseProject', 'id', ['delete' => 'CASCADE', 'update' => 'CASCADE'])
-                ->create();
+        // Project Members (Internal Team)
+        $members = $this->table('WarehouseProjectMember');
+        $members->addColumn('projectId', 'integer', ['signed' => false]) // <--- FIX HERE
+            ->addColumn('userId', 'integer', ['signed' => false]) // FIX
+            ->addColumn('role', 'string', ['limit' => 50, 'null' => true])
+            ->addColumn('create', 'integer')
+            ->addForeignKey('projectId', 'WarehouseProject', 'id', ['delete' => 'CASCADE', 'update' => 'CASCADE'])
+            ->create();
 
-            // Link table for Order Requests
-            $orderRequests = $this->table('WarehouseProjectOrderRequest');
-            $orderRequests->addColumn('projectId', 'integer')
-                ->addColumn('orderRequestId', 'integer')
-                ->addColumn('create', 'integer')
-                ->addForeignKey('projectId', 'WarehouseProject', 'id', ['delete' => 'CASCADE', 'update' => 'CASCADE'])
-                // Assuming WarehouseOrderRequest table exists based on controller analysis
-                ->addForeignKey('orderRequestId', 'WarehouseOrderRequest', 'id', ['delete' => 'CASCADE', 'update' => 'CASCADE'])
-                ->create();
-        }
+        // Link table for Order Requests
+        $orderRequests = $this->table('WarehouseProjectOrderRequest');
+        $orderRequests->addColumn('projectId', 'integer', ['signed' => false]) // <--- FIX HERE
+            ->addColumn('orderRequestId', 'integer', ['signed' => false]) // FIX
+            ->addColumn('create', 'integer')
+            ->addForeignKey('projectId', 'WarehouseProject', 'id', ['delete' => 'CASCADE', 'update' => 'CASCADE'])
+            ->addForeignKey('orderRequestId', 'WarehouseOrderRequest', 'id', ['delete' => 'CASCADE', 'update' => 'CASCADE'])
+            ->create();
     }
 }