feat: Negative Batch report

erpnext/stock/report/negative_batch_report/negative_batch_report.js

@@ -0,0 +1,41 @@
+// Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+
+frappe.query_reports["Negative Batch Report"] = {
+	filters: [
+		{
+			fieldname: "company",
+			label: __("Company"),
+			fieldtype: "Link",
+			options: "Company",
+			default: frappe.defaults.get_default("company"),
+		},
+		{
+			fieldname: "item_code",
+			label: __("Item Code"),
+			fieldtype: "Link",
+			options: "Item",
+			get_query: function () {
+				return {
+					filters: {
+						has_batch_no: 1,
+					},
+				};
+			},
+		},
+		{
+			fieldname: "warehouse",
+			label: __("Warehouse"),
+			fieldtype: "Link",
+			options: "Warehouse",
+			get_query: function () {
+				return {
+					filters: {
+						is_group: 0,
+						company: frappe.query_report.get_filter_value("company"),
+					},
+				};
+			},
+		},
+	],
+};

erpnext/stock/report/negative_batch_report/negative_batch_report.json

@@ -0,0 +1,53 @@
+{
+ "add_total_row": 0,
+ "add_translate_data": 0,
+ "columns": [],
+ "creation": "2026-02-17 11:34:21.549485",
+ "disabled": 0,
+ "docstatus": 0,
+ "doctype": "Report",
+ "filters": [],
+ "idx": 0,
+ "is_standard": "Yes",
+ "json": "",
+ "letter_head": null,
+ "modified": "2026-02-17 11:34:59.106045",
+ "modified_by": "Administrator",
+ "module": "Stock",
+ "name": "Negative Batch Report",
+ "owner": "Administrator",
+ "prepared_report": 0,
+ "ref_doctype": "Serial and Batch Bundle",
+ "report_name": "Negative Batch Report",
+ "report_type": "Script Report",
+ "roles": [
+  {
+   "role": "System Manager"
+  },
+  {
+   "role": "Purchase User"
+  },
+  {
+   "role": "Purchase Manager"
+  },
+  {
+   "role": "Stock User"
+  },
+  {
+   "role": "Stock Manager"
+  },
+  {
+   "role": "Delivery User"
+  },
+  {
+   "role": "Delivery Manager"
+  },
+  {
+   "role": "Manufacturing User"
+  },
+  {
+   "role": "Manufacturing Manager"
+  }
+ ],
+ "timeout": 0
+}

erpnext/stock/report/negative_batch_report/negative_batch_report.py

@@ -0,0 +1,145 @@
+# Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+import frappe
+from frappe import _
+from frappe.utils import add_to_date, flt, today
+
+from erpnext.stock.report.stock_ledger.stock_ledger import execute as stock_ledger_execute
+
+
+def execute(filters: dict | None = None):
+	"""Return columns and data for the report.
+
+	This is the main entry point for the report. It accepts the filters as a
+	dictionary and should return columns and data. It is called by the framework
+	every time the report is refreshed or a filter is updated.
+	"""
+	columns = get_columns()
+	data = get_data(filters)
+
+	return columns, data
+
+
+def get_columns() -> list[dict]:
+	return [
+		{
+			"label": _("Posting Datetime"),
+			"fieldname": "posting_date",
+			"fieldtype": "Datetime",
+			"width": 160,
+		},
+		{
+			"label": _("Batch No"),
+			"fieldname": "batch_no",
+			"fieldtype": "Link",
+			"options": "Batch",
+			"width": 120,
+		},
+		{
+			"label": _("Item Code"),
+			"fieldname": "item_code",
+			"fieldtype": "Link",
+			"options": "Item",
+			"width": 150,
+		},
+		{
+			"label": _("Warehouse"),
+			"fieldname": "warehouse",
+			"fieldtype": "Link",
+			"options": "Warehouse",
+			"width": 160,
+		},
+		{
+			"label": _("Previous Qty"),
+			"fieldname": "previous_qty",
+			"fieldtype": "Float",
+			"width": 130,
+		},
+		{
+			"label": _("Transaction Qty"),
+			"fieldname": "actual_qty",
+			"fieldtype": "Float",
+			"width": 130,
+		},
+		{
+			"label": _("Qty After Transaction"),
+			"fieldname": "qty_after_transaction",
+			"fieldtype": "Float",
+			"width": 180,
+		},
+		{
+			"label": _("Document Type"),
+			"fieldname": "voucher_type",
+			"fieldtype": "Data",
+			"width": 130,
+		},
+		{
+			"label": _("Document No"),
+			"fieldname": "voucher_no",
+			"fieldtype": "Dynamic Link",
+			"options": "voucher_type",
+			"width": 130,
+		},
+	]
+
+
+def get_data(filters) -> list[dict]:
+	batches = get_batches(filters)
+	companies = get_companies(filters)
+	batch_negative_data = []
+
+	flt_precision = frappe.db.get_default("float_precision") or 2
+	for company in companies:
+		for batch in batches:
+			_c, data = stock_ledger_execute(
+				frappe._dict(
+					{
+						"company": company,
+						"batch_no": batch,
+						"from_date": add_to_date(today(), years=-12),
+						"to_date": today(),
+						"segregate_serial_batch_bundle": 1,
+						"warehouse": filters.get("warehouse"),
+						"valuation_field_type": "Currency",
+					}
+				)
+			)
+
+			previous_qty = 0
+			for row in data:
+				if flt(row.get("qty_after_transaction"), flt_precision) < 0:
+					batch_negative_data.append(
+						{
+							"posting_date": row.get("date"),
+							"batch_no": row.get("batch_no"),
+							"item_code": row.get("item_code"),
+							"item_name": row.get("item_name"),
+							"warehouse": row.get("warehouse"),
+							"actual_qty": row.get("actual_qty"),
+							"qty_after_transaction": row.get("qty_after_transaction"),
+							"previous_qty": previous_qty,
+							"voucher_type": row.get("voucher_type"),
+							"voucher_no": row.get("voucher_no"),
+						}
+					)
+
+				previous_qty = row.get("qty_after_transaction")
+
+	return batch_negative_data
+
+
+def get_batches(filters):
+	batch_filters = {}
+	if filters.get("item_code"):
+		batch_filters["item"] = filters["item_code"]
+
+	return frappe.get_all("Batch", pluck="name", filters=batch_filters)
+
+
+def get_companies(filters):
+	company_filters = {}
+	if filters.get("company"):
+		company_filters["name"] = filters["company"]
+
+	return frappe.get_all("Company", pluck="name", filters=company_filters)