Enable export of supplier price break data (#11153)

* Enable export of supplier price break data

* Bump API version

src/backend/InvenTree/InvenTree/api_version.py

@@ -1,11 +1,14 @@
 """InvenTree API version information."""
 
 # InvenTree API version
-INVENTREE_API_VERSION = 440
+INVENTREE_API_VERSION = 441
 """Increment this API version number whenever there is a significant change to the API that any clients need to know about."""
 
 INVENTREE_API_TEXT = """
 
+v441 -> 2026-01-17 : https://github.com/inventree/InvenTree/pull/11153
+    - Allow export of supplier part pricing data
+
 v440 -> 2026-01-15 : https://github.com/inventree/InvenTree/pull/10796
     - Adds confirm and confirm_text to all settings
 

src/backend/InvenTree/company/api.py

@@ -447,7 +447,11 @@ class SupplierPriceBreakOutputOptions(OutputConfiguration):
 
 
 class SupplierPriceBreakList(
-    SupplierPriceBreakMixin, SerializerContextMixin, OutputOptionsMixin, ListCreateAPI
+    DataExportViewMixin,
+    SupplierPriceBreakMixin,
+    SerializerContextMixin,
+    OutputOptionsMixin,
+    ListCreateAPI,
 ):
     """API endpoint for list view of SupplierPriceBreak object.
 

src/backend/InvenTree/company/serializers.py

@@ -540,8 +540,8 @@ class SupplierPartSerializer(
 
 @register_importer()
 class SupplierPriceBreakSerializer(
-    SupplierPriceBreakBriefSerializer,
     DataImportExportSerializerMixin,
+    SupplierPriceBreakBriefSerializer,
     InvenTreeModelSerializer,
 ):
     """Serializer for SupplierPriceBreak object.

src/frontend/src/tables/purchasing/SupplierPriceBreakTable.tsx

@@ -206,7 +206,8 @@ export default function SupplierPriceBreakTable({
             supplier_detail: true
           },
           tableActions: tableActions,
-          rowActions: rowActions
+          rowActions: rowActions,
+          enableDownload: true
         }}
       />
     </>