feat: report to verify discount amount mismatch

(cherry picked from commit 62dd6df24f)

erpnext/accounts/report/calculated_discount_mismatch/calculated_discount_mismatch.js

@@ -0,0 +1,13 @@
+// Copyright (c) 2025, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+
+frappe.query_reports["Calculated Discount Mismatch"] = {
+	filters: [
+		// {
+		// 	"fieldname": "my_filter",
+		// 	"label": __("My Filter"),
+		// 	"fieldtype": "Data",
+		// 	"reqd": 1,
+		// },
+	],
+};

erpnext/accounts/report/calculated_discount_mismatch/calculated_discount_mismatch.json

@@ -0,0 +1,38 @@
+{
+ "add_total_row": 0,
+ "add_translate_data": 0,
+ "columns": [],
+ "creation": "2025-06-06 17:09:50.681090",
+ "disabled": 0,
+ "docstatus": 0,
+ "doctype": "Report",
+ "filters": [],
+ "idx": 0,
+ "is_standard": "Yes",
+ "letter_head": "",
+ "letterhead": null,
+ "modified": "2025-06-06 18:09:18.221911",
+ "modified_by": "Administrator",
+ "module": "Accounts",
+ "name": "Calculated Discount Mismatch",
+ "owner": "Administrator",
+ "prepared_report": 0,
+ "ref_doctype": "Version",
+ "report_name": "Calculated Discount Mismatch",
+ "report_type": "Script Report",
+ "roles": [
+  {
+   "role": "System Manager"
+  },
+  {
+   "role": "Administrator"
+  },
+  {
+   "role": "Accounts Manager"
+  },
+  {
+   "role": "Accounts User"
+  }
+ ],
+ "timeout": 0
+}

erpnext/accounts/report/calculated_discount_mismatch/calculated_discount_mismatch.py

@@ -0,0 +1,86 @@
+# Copyright (c) 2025, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+import frappe
+from frappe import _
+
+DISCOUNT_DOCTYPES = frozenset(
+	(
+		"POS Invoice",
+		"Purchase Invoice",
+		"Sales Invoice",
+		"Purchase Order",
+		"Supplier Quotation",
+		"Quotation",
+		"Sales Order",
+		"Delivery Note",
+		"Purchase Receipt",
+	)
+)
+LAST_MODIFIED_DATE_THRESHOLD = "2025-05-30"
+
+
+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()
+
+	return columns, data
+
+
+def get_columns() -> list[dict]:
+	"""Return columns for the report.
+
+	One field definition per column, just like a DocType field definition.
+	"""
+	return [
+		{
+			"label": _("Doctype"),
+			"fieldname": "doctype",
+			"fieldtype": "Data",
+			"width": 150,
+		},
+		{
+			"label": _("Document Name"),
+			"fieldname": "document_name",
+			"fieldtype": "Dynamic Link",
+			"options": "doctype",
+			"width": 200,
+		},
+	]
+
+
+def get_data() -> list[list]:
+	"""Return data for the report.
+
+	The report data is a list of rows, with each row being a list of cell values.
+	"""
+	data = []
+	VERSION = frappe.qb.DocType("Version")
+
+	result = (
+		frappe.qb.from_(VERSION)
+		.select(VERSION.ref_doctype, VERSION.docname, VERSION.data, VERSION.name)
+		.where(VERSION.modified > LAST_MODIFIED_DATE_THRESHOLD)
+		.where(VERSION.ref_doctype.isin(list(DISCOUNT_DOCTYPES)))
+		.run(as_dict=True)
+	)
+
+	for row in result:
+		changed_data = {entry[0]: entry for entry in frappe.parse_json(row.data).get("changed", [])}
+
+		docstatus = changed_data.get("docstatus")
+		if not docstatus or docstatus[2] != 1:
+			continue
+
+		if "discount_amount" not in changed_data:
+			continue
+
+		data.append({"doctype": row.ref_doctype, "document_name": row.docname})
+
+	return data

erpnext/patches.txt

@@ -408,3 +408,4 @@ erpnext.patches.v15_0.set_cancelled_status_to_cancelled_pos_invoice
 erpnext.patches.v15_0.rename_group_by_to_categorize_by_in_custom_reports
 erpnext.patches.v14_0.update_full_name_in_contract
 erpnext.patches.v15_0.drop_sle_indexes
+erpnext.patches.v15_0.set_additional_discount_percentage