diff --git a/apps/pum/serializers.py b/apps/pum/serializers.py
index 014b6364..bc59e3d9 100644
--- a/apps/pum/serializers.py
+++ b/apps/pum/serializers.py
@@ -61,6 +61,13 @@ class PuPlanItemSerializer(CustomModelSerializer):
 
 
 class PuOrderSerializer(CustomModelSerializer):
+    supplier_name = serializers.CharField(
+        source='supplier.name', read_only=True)
+    create_by_name = serializers.CharField(
+        source='create_by.name', read_only=True)
+    update_by_name = serializers.CharField(
+        source='update_by.name', read_only=True)
+
     class Meta:
         model = PuOrder
         fields = '__all__'
diff --git a/apps/pum/views.py b/apps/pum/views.py
index 34453471..2ed81254 100644
--- a/apps/pum/views.py
+++ b/apps/pum/views.py
@@ -96,6 +96,7 @@ class PuOrderViewSet(CustomModelViewSet):
     serializer_class = PuOrderSerializer
     filterset_fields = ['state', 'supplier']
     search_fields = ['number', 'supplier__name']
+    select_related_fields = ['create_by', 'update_by', 'supplier']
 
     @transaction.atomic
     def perform_destroy(self, instance):
diff --git a/apps/sam/serializers.py b/apps/sam/serializers.py
index 34dde57e..1830ec4c 100644
--- a/apps/sam/serializers.py
+++ b/apps/sam/serializers.py
@@ -21,6 +21,15 @@ class ContractSerializer(CustomModelSerializer):
 
 
 class OrderSerializer(CustomModelSerializer):
+    customer_name = serializers.CharField(
+        source='customer.name', read_only=True)
+    contract_number = serializers.CharField(
+        source='contract.number', read_only=True)
+    create_by_name = serializers.CharField(
+        source='create_by.name', read_only=True)
+    update_by_name = serializers.CharField(
+        source='update_by.name', read_only=True)
+
     class Meta:
         model = Order
         fields = '__all__'