From ca07982ee03fea28b0554c02c4b51670960c3672 Mon Sep 17 00:00:00 2001
From: Rohit Waghchaure <rohitw1991@gmail.com>
Date: Thu, 18 Jun 2026 13:32:46 +0530
Subject: [PATCH] feat: add batch-level option to allow negative stock for
 batch

---
 erpnext/stock/doctype/batch/batch.json          | 11 ++++++++++-
 erpnext/stock/doctype/batch/batch.py            |  1 +
 .../serial_and_batch_bundle.py                  | 17 +++++++++++++++--
 3 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/erpnext/stock/doctype/batch/batch.json b/erpnext/stock/doctype/batch/batch.json
index 765eb1ae05d..51127673b37 100644
--- a/erpnext/stock/doctype/batch/batch.json
+++ b/erpnext/stock/doctype/batch/batch.json
@@ -19,6 +19,7 @@
   "stock_uom",
   "expiry_date",
   "use_batchwise_valuation",
+  "allow_negative_stock_for_batch",
   "disabled",
   "source",
   "column_break_9",
@@ -199,6 +200,14 @@
   {
    "fieldname": "column_break_xrll",
    "fieldtype": "Column Break"
+  },
+  {
+   "default": "0",
+   "description": "If enabled, the system will allow negative stock entries for this batch, overriding the 'Allow negative stock for Batch' setting in Stock Settings. This may lead to incorrect valuation rates, so it is recommended to avoid using this option.",
+   "fieldname": "allow_negative_stock_for_batch",
+   "fieldtype": "Check",
+   "label": "Allow Negative Stock for Batch",
+   "no_copy": 1
   }
  ],
  "icon": "fa fa-archive",
@@ -206,7 +215,7 @@
  "image_field": "image",
  "links": [],
  "max_attachments": 5,
- "modified": "2026-06-16 16:01:26.556324",
+ "modified": "2026-06-17 16:01:26.556324",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Batch",
diff --git a/erpnext/stock/doctype/batch/batch.py b/erpnext/stock/doctype/batch/batch.py
index 76b04e8ed5e..c8d8b758c04 100644
--- a/erpnext/stock/doctype/batch/batch.py
+++ b/erpnext/stock/doctype/batch/batch.py
@@ -95,6 +95,7 @@ class Batch(Document):
 	if TYPE_CHECKING:
 		from frappe.types import DF
 
+		allow_negative_stock_for_batch: DF.Check
 		batch_id: DF.Data
 		batch_qty: DF.Float
 		description: DF.SmallText | None
diff --git a/erpnext/stock/doctype/serial_and_batch_bundle/serial_and_batch_bundle.py b/erpnext/stock/doctype/serial_and_batch_bundle/serial_and_batch_bundle.py
index ea650e5e100..1a2b519034f 100644
--- a/erpnext/stock/doctype/serial_and_batch_bundle/serial_and_batch_bundle.py
+++ b/erpnext/stock/doctype/serial_and_batch_bundle/serial_and_batch_bundle.py
@@ -1581,7 +1581,7 @@ class SerialandBatchBundle(Document):
 	def throw_negative_batch(self, batch_no, available_qty, precision, posting_datetime=None):
 		from erpnext.stock.stock_ledger import NegativeStockError
 
-		if frappe.db.get_single_value("Stock Settings", "allow_negative_stock_for_batch"):
+		if allow_negative_stock_for_batch(batch_no):
 			return
 
 		date_msg = ""
@@ -1592,7 +1592,7 @@ class SerialandBatchBundle(Document):
 			"""
 			The Batch {0} of an item {1} has negative stock in the warehouse {2}{3}.
 			Please add a stock quantity of {4} to proceed with this entry.
-			If it is not possible to make an adjustment entry, please enable 'Allow Negative Stock for Batch' in Stock Settings to proceed.
+			If it is not possible to make an adjustment entry, please enable 'Allow Negative Stock for Batch' in the batch {0} or in the Stock Settings to proceed.
 			However, enabling this setting may lead to negative stock in the system.
 			So please ensure the stock levels are adjusted as soon as possible to maintain the correct valuation rate."""
 		).format(
@@ -2202,6 +2202,19 @@ def combine_datetime(date, time=None):
 	return get_combine_datetime(date, time)
 
 
+def allow_negative_stock_for_batch(batch_no):
+	"""Return whether negative stock is allowed for the given batch.
+
+	The batch-level setting takes priority: if `allow_negative_stock_for_batch`
+	is enabled on the Batch, negative stock is allowed regardless of Stock Settings.
+	Otherwise, fall back to the `allow_negative_stock_for_batch` Stock Setting.
+	"""
+	if batch_no and frappe.db.get_value("Batch", batch_no, "allow_negative_stock_for_batch"):
+		return True
+
+	return bool(frappe.db.get_single_value("Stock Settings", "allow_negative_stock_for_batch"))
+
+
 def get_batch(item_code):
 	from erpnext.stock.doctype.batch.batch import make_batch