diff --git a/app/Repositories/PurchaseOrderRepository.php b/app/Repositories/PurchaseOrderRepository.php
index cf0653c25c..d620fdcdd1 100644
--- a/app/Repositories/PurchaseOrderRepository.php
+++ b/app/Repositories/PurchaseOrderRepository.php
@@ -13,6 +13,7 @@ namespace App\Repositories;
 
 
 use App\Models\PurchaseOrder;
+use App\Models\PurchaseOrderInvitation;
 use App\Utils\Traits\MakesHash;
 
 class PurchaseOrderRepository extends BaseRepository
@@ -30,5 +31,9 @@ class PurchaseOrderRepository extends BaseRepository
 
         return $purchase_order;
     }
+    public function getInvitationByKey($key) :?PurchaseOrderInvitation
+    {
+        return PurchaseOrderInvitation::where('key', $key)->first();
+    }
 
 }