diff --git a/app/Models/Invoice.php b/app/Models/Invoice.php
index dc4f8469..45c3dcf8 100644
--- a/app/Models/Invoice.php
+++ b/app/Models/Invoice.php
@@ -591,4 +591,9 @@ class Invoice extends Model implements HasMedia
             '{INVOICE_LINK}' => url('/customer/invoices/pdf/'.$this->unique_hash),
         ];
     }
+
+    public function getValues($slug)
+    {
+        return $this->getCustomFieldValues($slug);
+    }
 }
diff --git a/app/Traits/HasCustomFieldsTrait.php b/app/Traits/HasCustomFieldsTrait.php
index f7de7aa0..7617f16c 100644
--- a/app/Traits/HasCustomFieldsTrait.php
+++ b/app/Traits/HasCustomFieldsTrait.php
@@ -42,4 +42,11 @@ trait HasCustomFieldsTrait
             $customFieldValue->save();
         }
     }
+
+    public function getCustomFieldValues($slug)
+    {
+        return $this->fields()->whereHas('customField', function ($query) use ($slug) {
+            $query->where('slug', $slug);
+        })->first();
+    }
 }