fix: Gross Profit Report with Correct Totals and Gross Margin (backport #45548) (#45597)

* fix: Gross Profit Report with Correct Totals and Gross Margin (#45548)

Co-authored-by: Sanket322 <shahsanket322003.com>
(cherry picked from commit aaf720ab61)

# Conflicts:
#	erpnext/accounts/report/gross_profit/test_gross_profit.py
#	erpnext/patches.txt

* fix: conflicts

---------

Co-authored-by: Sanket Shah <113279972+Sanket322@users.noreply.github.com>
Co-authored-by: ljain112 <ljain112@gmail.com>

erpnext/accounts/report/gross_profit/gross_profit.json

@@ -1,5 +1,5 @@
 {
- "add_total_row": 1,
+ "add_total_row": 0,
  "columns": [],
  "creation": "2013-02-25 17:03:34",
  "disable_prepared_report": 0,
@@ -9,7 +9,7 @@
  "filters": [],
  "idx": 3,
  "is_standard": "Yes",
- "modified": "2022-02-11 10:18:36.956558",
+ "modified": "2025-01-27 18:40:24.493829",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Gross Profit",

erpnext/accounts/report/gross_profit/gross_profit.py

@@ -166,7 +166,14 @@ def get_data_when_grouped_by_invoice(columns, gross_profit_data, filters, group_
 	# removing Item Code and Item Name columns
 	del columns[4:6]
 
+	total_base_amount = 0
+	total_buying_amount = 0
+
 	for src in gross_profit_data.si_list:
+		if src.indent == 1:
+			total_base_amount += src.base_amount or 0.0
+			total_buying_amount += src.buying_amount or 0.0
+
 		row = frappe._dict()
 		row.indent = src.indent
 		row.parent_invoice = src.parent_invoice
@@ -177,6 +184,27 @@ def get_data_when_grouped_by_invoice(columns, gross_profit_data, filters, group_
 
 		data.append(row)
 
+	total_gross_profit = total_base_amount - total_buying_amount
+	data.append(
+		frappe._dict(
+			{
+				"sales_invoice": "Total",
+				"qty": None,
+				"avg._selling_rate": None,
+				"valuation_rate": None,
+				"selling_amount": total_base_amount,
+				"buying_amount": total_buying_amount,
+				"gross_profit": total_gross_profit,
+				"gross_profit_%": flt(
+					(total_gross_profit / total_base_amount) * 100.0,
+					cint(frappe.db.get_default("currency_precision")) or 3,
+				)
+				if total_base_amount
+				else 0,
+			}
+		)
+	)
+
 
 def get_data_when_not_grouped_by_invoice(gross_profit_data, filters, group_wise_columns, data):
 	for src in gross_profit_data.grouped_data:

erpnext/accounts/report/gross_profit/test_gross_profit.py

@@ -558,3 +558,33 @@ class TestGrossProfit(FrappeTestCase):
 		}
 		gp_entry = [x for x in data if x.parent_invoice == sinv.name]
 		self.assertDictContainsSubset(expected_entry, gp_entry[0])
+
+	def test_gross_profit_groupby_invoices(self):
+		create_sales_invoice(
+			qty=1,
+			rate=100,
+			company=self.company,
+			customer=self.customer,
+			item_code=self.item,
+			item_name=self.item,
+			cost_center=self.cost_center,
+			warehouse=self.warehouse,
+			debit_to=self.debit_to,
+			parent_cost_center=self.cost_center,
+			update_stock=0,
+			currency="INR",
+			income_account=self.income_account,
+			expense_account=self.expense_account,
+		)
+
+		filters = frappe._dict(
+			company=self.company, from_date=nowdate(), to_date=nowdate(), group_by="Invoice"
+		)
+
+		_, data = execute(filters=filters)
+		total = data[-1]
+
+		self.assertEqual(total.selling_amount, 100.0)
+		self.assertEqual(total.buying_amount, 0.0)
+		self.assertEqual(total.gross_profit, 100.0)
+		self.assertEqual(total.get("gross_profit_%"), 100.0)

erpnext/patches.txt

@@ -368,3 +368,5 @@ erpnext.patches.v14_0.remove_cancelled_asset_capitalization_from_asset
 erpnext.patches.v14_0.enable_set_priority_for_pricing_rules #1
 erpnext.patches.v14_0.update_currency_exchange_settings_for_frankfurter
 erpnext.patches.v14_0.update_stock_uom_in_work_order_item
+erpnext.patches.v14_0.disable_add_row_in_gross_profit
+

erpnext/patches/v14_0/disable_add_row_in_gross_profit.py

@@ -0,0 +1,5 @@
+import frappe
+
+
+def execute():
+	frappe.db.set_value("Report", "Gross Profit", "add_total_row", 0)