diff --git a/src/backend/InvenTree/InvenTree/api_version.py b/src/backend/InvenTree/InvenTree/api_version.py
index 20d59d51c1..a37cfc736e 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 = 549
+INVENTREE_API_VERSION = 550
 """Increment this API version number whenever there is a significant change to the API that any clients need to know about."""
 
 INVENTREE_API_TEXT = """
 
+v550 -> 2026-09-22 : https://github.com/inventree/InvenTree/pull/12912
+    - Adds a top-level 'batch_code' field to the PurchaseOrderReceive API endpoint
+
 v549 -> 2026-09-22 : https://github.com/inventree/InvenTree/pull/12908
     - Adds filtering / ordering / searching options to the SelectionList API endpoint
 
diff --git a/src/backend/InvenTree/order/serializers.py b/src/backend/InvenTree/order/serializers.py
index 4f40faa7f7..f19c73a172 100644
--- a/src/backend/InvenTree/order/serializers.py
+++ b/src/backend/InvenTree/order/serializers.py
@@ -994,7 +994,7 @@ class PurchaseOrderReceiveSerializer(serializers.Serializer):
     class Meta:
         """Metaclass options."""
 
-        fields = ['items', 'location']
+        fields = ['items', 'location', 'batch_code']
 
     items = PurchaseOrderLineItemReceiveSerializer(many=True)
 
@@ -1007,6 +1007,16 @@ class PurchaseOrderReceiveSerializer(serializers.Serializer):
         help_text=_('Select destination location for received items'),
     )
 
+    batch_code = serializers.CharField(
+        label=_('Batch Code'),
+        help_text=_(
+            'Enter batch code for incoming stock items - applied to any line item which does not specify its own batch code'
+        ),
+        required=False,
+        default='',
+        allow_blank=True,
+    )
+
     def validate(self, data):
         """Custom validation for the serializer.
 
@@ -1019,6 +1029,7 @@ class PurchaseOrderReceiveSerializer(serializers.Serializer):
         items = data.get('items', [])
 
         location = data.get('location', order.destination)
+        batch_code = data.get('batch_code', '')
 
         if len(items) == 0:
             raise ValidationError(_('Line items must be provided'))
@@ -1050,6 +1061,10 @@ class PurchaseOrderReceiveSerializer(serializers.Serializer):
                     'location': _('Destination location must be specified')
                 })
 
+            # If no batch code is specified for this line item, fall back to the top-level value
+            if not item.get('batch_code'):
+                item['batch_code'] = batch_code
+
             barcode = item.get('barcode', '')
 
             if barcode:
diff --git a/src/backend/InvenTree/order/test_api.py b/src/backend/InvenTree/order/test_api.py
index fbec1bb160..a8f63cb96c 100644
--- a/src/backend/InvenTree/order/test_api.py
+++ b/src/backend/InvenTree/order/test_api.py
@@ -1532,6 +1532,39 @@ class PurchaseOrderReceiveTest(OrderTest):
         self.assertEqual(item_1.batch, 'B-abc-123')
         self.assertEqual(item_2.batch, 'B-xyz-789')
 
+    def test_top_level_batch_code(self):
+        """Test the top-level 'batch_code' field.
+
+        - Applied to any line item which does not specify its own batch code
+        - A line item's own 'batch_code' value takes precedence
+        """
+        line_1 = models.PurchaseOrderLineItem.objects.get(pk=1)
+        line_2 = models.PurchaseOrderLineItem.objects.get(pk=2)
+
+        data = {
+            'items': [
+                {'line_item': 1, 'quantity': 10},
+                {'line_item': 2, 'quantity': 10, 'batch_code': 'B-xyz-789'},
+            ],
+            'location': 1,
+            'batch_code': 'B-top-level',
+        }
+
+        n = StockItem.objects.count()
+
+        self.post(self.url, data, expected_code=201)
+
+        self.assertEqual(n + 2, StockItem.objects.count())
+
+        item_1 = StockItem.objects.filter(supplier_part=line_1.part).first()
+        item_2 = StockItem.objects.filter(supplier_part=line_2.part).first()
+
+        # Line item 1 did not specify its own batch code - falls back to top-level value
+        self.assertEqual(item_1.batch, 'B-top-level')
+
+        # Line item 2 specified its own batch code - takes precedence
+        self.assertEqual(item_2.batch, 'B-xyz-789')
+
     def test_serial_numbers(self):
         """Test that we can supply a 'serial number' when receiving items."""
         line_1 = models.PurchaseOrderLineItem.objects.get(pk=1)
diff --git a/src/frontend/.gitignore b/src/frontend/.gitignore
index 5d9699d78c..139bf919c1 100644
--- a/src/frontend/.gitignore
+++ b/src/frontend/.gitignore
@@ -29,6 +29,7 @@ dist-ssr
 /playwright/.cache/
 /.nyc_output/
 /coverage/
+/flakiness-report/
 
 # Report generation
 stats.html
diff --git a/src/frontend/src/forms/PurchaseOrderForms.tsx b/src/frontend/src/forms/PurchaseOrderForms.tsx
index e2cc8cdce5..023a4be345 100644
--- a/src/frontend/src/forms/PurchaseOrderForms.tsx
+++ b/src/frontend/src/forms/PurchaseOrderForms.tsx
@@ -11,7 +11,7 @@ import {
   Table,
   TextInput
 } from '@mantine/core';
-import { useDisclosure } from '@mantine/hooks';
+import { useDisclosure, useId } from '@mantine/hooks';
 import {
   IconAddressBook,
   IconCalendar,
@@ -345,11 +345,13 @@ export function usePurchaseOrderFields({
 function LineItemFormRow({
   props,
   record,
-  statuses
+  statuses,
+  topLevelBatchCode
 }: Readonly<{
   props: TableFieldRowProps;
   record: any;
   statuses: any;
+  topLevelBatchCode?: string;
 }>) {
   // Barcode Modal state
   const [opened, { open, close }] = useDisclosure(false, {
@@ -771,11 +773,13 @@ function LineItemFormRow({
         onValueChange={(value) => {
           props.changeFn(props.rowId, 'batch_code', value);
         }}
-        fieldName='batch_code'
+        fieldName='line_batch_code'
         fieldDefinition={{
           field_type: 'string',
           label: t`Batch Code`,
-          description: t`Enter batch code for received items`,
+          description: topLevelBatchCode
+            ? t`Overrides the top-level batch code ("${topLevelBatchCode}") for this line item`
+            : t`Enter batch code for received items`,
           value: props.item.batch_code,
           placeholderAutofill: true,
           placeholder:
@@ -869,6 +873,8 @@ type LineItemsForm = {
 };
 
 export function useReceiveLineItems(props: LineItemsForm) {
+  const modalId = useId();
+
   const stockStatusCodes = useMemo(
     () => getStatusCodeOptions(ModelType.stockitem),
     []
@@ -878,6 +884,14 @@ export function useReceiveLineItems(props: LineItemsForm) {
     return Object.fromEntries(props.items.map((item) => [item.pk, item]));
   }, [props.items]);
 
+  // Top-level batch code, applied to any line item which does not specify its own
+  const [batchCode, setBatchCode] = useState<string>('');
+
+  const batchCodeGenerator = useBatchCodeGenerator({
+    modalId,
+    initialQuery: { order: props.orderPk }
+  });
+
   const filteredItems = useMemo(() => {
     return props.items
       .filter((elem) => elem.quantity !== elem.received)
@@ -928,6 +942,7 @@ export function useReceiveLineItems(props: LineItemsForm) {
               props={row}
               record={record}
               statuses={stockStatusCodes}
+              topLevelBatchCode={batchCode}
               key={row.rowId}
             />
           );
@@ -945,12 +960,27 @@ export function useReceiveLineItems(props: LineItemsForm) {
         filters: {
           structural: false
         }
+      },
+      batch_code: {
+        icon: <InvenTreeIcon icon='batch_code' />,
+        value: batchCode,
+        onValueChange: setBatchCode,
+        placeholderAutofill: true,
+        placeholder: batchCodeGenerator.result && `${batchCodeGenerator.result}`
       }
     };
-  }, [filteredItems, records, props.orderPk, stockStatusCodes]);
+  }, [
+    filteredItems,
+    records,
+    props.orderPk,
+    stockStatusCodes,
+    batchCode,
+    batchCodeGenerator.result
+  ]);
 
   return useCreateApiFormModal({
     ...props.formProps,
+    modalId,
     url: apiUrl(ApiEndpoints.purchase_order_receive, props.orderPk),
     title: t`Receive Line Items`,
     fields: fields,
diff --git a/src/frontend/tests/pages/pui_purchasing.spec.ts b/src/frontend/tests/pages/pui_purchasing.spec.ts
index efcb06d4cc..a83434f135 100644
--- a/src/frontend/tests/pages/pui_purchasing.spec.ts
+++ b/src/frontend/tests/pages/pui_purchasing.spec.ts
@@ -589,7 +589,7 @@ test('Purchase Orders - Receive Items', async ({ browser }) => {
   await page.getByLabel('action-button-add-note').click();
 
   await page
-    .getByLabel('text-field-batch_code', { exact: true })
+    .getByLabel('text-field-line_batch_code', { exact: true })
     .fill('my-batch-code');
   await page.getByLabel('text-field-packaging', { exact: true }).fill('bucket');
   await page
@@ -653,7 +653,7 @@ test('Purchase Orders - Custom Location', async ({ browser }) => {
 
   await page.getByLabel('action-button-assign-batch-').click();
   await page
-    .getByLabel('text-field-batch_code', { exact: true })
+    .getByLabel('text-field-line_batch_code', { exact: true })
     .fill('po-custom-location-test');
 
   // Short timeout to allow for debouncing