diff --git a/tienda_ilusion/don_confiao/serializers.py b/tienda_ilusion/don_confiao/serializers.py
index 923befe..92cb5ab 100644
--- a/tienda_ilusion/don_confiao/serializers.py
+++ b/tienda_ilusion/don_confiao/serializers.py
@@ -21,7 +21,7 @@ class SaleSerializer(serializers.ModelSerializer):
 class ProductSerializer(serializers.ModelSerializer):
     class Meta:
         model = Product
-        fields = ['id', 'name', 'price', 'measuring_unit', 'categories']
+        fields = ['id', 'name', 'price', 'measuring_unit', 'categories', 'external_id']
 
 
 class CustomerSerializer(serializers.ModelSerializer):