From 435d34568b0c0e367b947429d284b07ac40bf0d3 Mon Sep 17 00:00:00 2001
From: Joe Rogers <1337joe@users.noreply.github.com>
Date: Thu, 23 Oct 2025 15:52:14 +0200
Subject: [PATCH] Add missing nullable annotation to optional field (#10651)

* Add missing nullable annotation to optional field

* Bump api version

* Fix merge mistake
---
 src/backend/InvenTree/InvenTree/api_version.py | 5 ++++-
 src/backend/InvenTree/part/serializers.py      | 4 +++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/backend/InvenTree/InvenTree/api_version.py b/src/backend/InvenTree/InvenTree/api_version.py
index 36709464b8..7bbaf7d9e9 100644
--- a/src/backend/InvenTree/InvenTree/api_version.py
+++ b/src/backend/InvenTree/InvenTree/api_version.py
@@ -1,11 +1,14 @@
 """InvenTree API version information."""
 
 # InvenTree API version
-INVENTREE_API_VERSION = 415
+INVENTREE_API_VERSION = 416
 """Increment this API version number whenever there is a significant change to the API that any clients need to know about."""
 
 INVENTREE_API_TEXT = """
 
+v416 -> 2025-10-22 : https://github.com/inventree/InvenTree/pull/10651
+    - Add missing nullable to make price_breaks (from v412) optional
+
 v415 -> 2025-10-22 : https://github.com/inventree/InvenTree/pull/10650
     - Adds "shipment_address" fields to the SalesOrderShipment API endpoints
 
diff --git a/src/backend/InvenTree/part/serializers.py b/src/backend/InvenTree/part/serializers.py
index 681cd5a507..16e7d364d0 100644
--- a/src/backend/InvenTree/part/serializers.py
+++ b/src/backend/InvenTree/part/serializers.py
@@ -1042,7 +1042,9 @@ class PartSerializer(
     )
 
     price_breaks = enable_filter(
-        PartSalePriceSerializer(source='salepricebreaks', many=True, read_only=True),
+        PartSalePriceSerializer(
+            source='salepricebreaks', many=True, read_only=True, allow_null=True
+        ),
         False,
         filter_name='price_breaks',
     )