diff --git a/src/backend/InvenTree/order/serializers.py b/src/backend/InvenTree/order/serializers.py
index 2698579273..2060c7b4b0 100644
--- a/src/backend/InvenTree/order/serializers.py
+++ b/src/backend/InvenTree/order/serializers.py
@@ -1517,37 +1517,45 @@ class SalesOrderSerialAllocationSerializer(serializers.Serializer):
         except DjangoValidationError as e:
             raise ValidationError({'serial_numbers': e.messages})
 
-        serials_not_exist = []
-        serials_allocated = []
+        serials_not_exist = set()
+        serials_unavailable = set()
         stock_items_to_allocate = []
 
         for serial in data['serials']:
+            serial = str(serial).strip()
+
             items = stock.models.StockItem.objects.filter(
                 part=part, serial=serial, quantity=1
             )
 
             if not items.exists():
-                serials_not_exist.append(str(serial))
+                serials_not_exist.add(str(serial))
                 continue
 
             stock_item = items[0]
 
-            if stock_item.unallocated_quantity() == 1:
-                stock_items_to_allocate.append(stock_item)
-            else:
-                serials_allocated.append(str(serial))
+            if not stock_item.in_stock:
+                serials_unavailable.add(str(serial))
+                continue
+
+            if stock_item.unallocated_quantity() < 1:
+                serials_unavailable.add(str(serial))
+                continue
+
+            # At this point, the serial number is valid, and can be added to the list
+            stock_items_to_allocate.append(stock_item)
 
         if len(serials_not_exist) > 0:
             error_msg = _('No match found for the following serial numbers')
             error_msg += ': '
-            error_msg += ','.join(serials_not_exist)
+            error_msg += ','.join(sorted(serials_not_exist))
 
             raise ValidationError({'serial_numbers': error_msg})
 
-        if len(serials_allocated) > 0:
-            error_msg = _('The following serial numbers are already allocated')
+        if len(serials_unavailable) > 0:
+            error_msg = _('The following serial numbers are unavailable')
             error_msg += ': '
-            error_msg += ','.join(serials_allocated)
+            error_msg += ','.join(sorted(serials_unavailable))
 
             raise ValidationError({'serial_numbers': error_msg})
 
diff --git a/src/frontend/src/enums/ApiEndpoints.tsx b/src/frontend/src/enums/ApiEndpoints.tsx
index 6ce43aa910..17a981b978 100644
--- a/src/frontend/src/enums/ApiEndpoints.tsx
+++ b/src/frontend/src/enums/ApiEndpoints.tsx
@@ -152,6 +152,7 @@ export enum ApiEndpoints {
   sales_order_extra_line_list = 'order/so-extra-line/',
   sales_order_allocation_list = 'order/so-allocation/',
   sales_order_shipment_list = 'order/so/shipment/',
+  sales_order_allocate_serials = 'order/so/:id/allocate-serials/',
 
   return_order_list = 'order/ro/',
   return_order_issue = 'order/ro/:id/issue/',
diff --git a/src/frontend/src/forms/SalesOrderForms.tsx b/src/frontend/src/forms/SalesOrderForms.tsx
index 02f5a976d5..d67ede312b 100644
--- a/src/frontend/src/forms/SalesOrderForms.tsx
+++ b/src/frontend/src/forms/SalesOrderForms.tsx
@@ -84,6 +84,31 @@ export function useSalesOrderLineItemFields({
   return fields;
 }
 
+export function useSalesOrderAllocateSerialsFields({
+  itemId,
+  orderId
+}: {
+  itemId: number;
+  orderId: number;
+}): ApiFormFieldSet {
+  return useMemo(() => {
+    return {
+      line_item: {
+        value: itemId,
+        hidden: true
+      },
+      quantity: {},
+      serial_numbers: {},
+      shipment: {
+        filters: {
+          order: orderId,
+          shipped: false
+        }
+      }
+    };
+  }, [itemId, orderId]);
+}
+
 export function useSalesOrderShipmentFields(): ApiFormFieldSet {
   return useMemo(() => {
     return {
diff --git a/src/frontend/src/tables/sales/SalesOrderLineItemTable.tsx b/src/frontend/src/tables/sales/SalesOrderLineItemTable.tsx
index 240e3a5ccf..ea2e91358a 100644
--- a/src/frontend/src/tables/sales/SalesOrderLineItemTable.tsx
+++ b/src/frontend/src/tables/sales/SalesOrderLineItemTable.tsx
@@ -1,6 +1,7 @@
 import { t } from '@lingui/macro';
 import { Text } from '@mantine/core';
 import {
+  IconHash,
   IconShoppingCart,
   IconSquareArrowRight,
   IconTools
@@ -14,7 +15,10 @@ import { ApiEndpoints } from '../../enums/ApiEndpoints';
 import { ModelType } from '../../enums/ModelType';
 import { UserRoles } from '../../enums/Roles';
 import { useBuildOrderFields } from '../../forms/BuildForms';
-import { useSalesOrderLineItemFields } from '../../forms/SalesOrderForms';
+import {
+  useSalesOrderAllocateSerialsFields,
+  useSalesOrderLineItemFields
+} from '../../forms/SalesOrderForms';
 import { notYetImplemented } from '../../functions/notifications';
 import {
   useCreateApiFormModal,
@@ -223,6 +227,19 @@ export default function SalesOrderLineItemTable({
     table: table
   });
 
+  const allocateSerialFields = useSalesOrderAllocateSerialsFields({
+    itemId: selectedLine,
+    orderId: orderId
+  });
+
+  const allocateBySerials = useCreateApiFormModal({
+    url: ApiEndpoints.sales_order_allocate_serials,
+    pk: orderId,
+    title: t`Allocate Serial Numbers`,
+    fields: allocateSerialFields,
+    table: table
+  });
+
   const buildOrderFields = useBuildOrderFields({ create: true });
 
   const newBuildOrder = useCreateApiFormModal({
@@ -264,6 +281,20 @@ export default function SalesOrderLineItemTable({
           color: 'green',
           onClick: notYetImplemented
         },
+        {
+          hidden:
+            !record?.part_detail?.trackable ||
+            allocated ||
+            !editable ||
+            !user.hasChangeRole(UserRoles.sales_order),
+          title: t`Allocate Serials`,
+          icon: <IconHash />,
+          color: 'green',
+          onClick: () => {
+            setSelectedLine(record.pk);
+            allocateBySerials.open();
+          }
+        },
         {
           hidden:
             allocated ||
@@ -323,6 +354,7 @@ export default function SalesOrderLineItemTable({
       {deleteLine.modal}
       {newLine.modal}
       {newBuildOrder.modal}
+      {allocateBySerials.modal}
       <InvenTreeTable
         url={apiUrl(ApiEndpoints.sales_order_line_list)}
         tableState={table}