fix: validate component quantity according to BOM (backport #43011) (#43014)

* fix: validate component quantity according to BOM (#43011)

(cherry picked from commit f3b91d4d62)

# Conflicts:
#	erpnext/manufacturing/doctype/manufacturing_settings/manufacturing_settings.json

* chore: fix conflicts

---------

Co-authored-by: rohitwaghchaure <rohitw1991@gmail.com>

erpnext/manufacturing/doctype/manufacturing_settings/manufacturing_settings.json

@@ -5,18 +5,17 @@
  "document_type": "Document",
  "engine": "InnoDB",
  "field_order": [
+  "bom_and_work_order_tab",
   "raw_materials_consumption_section",
   "material_consumption",
   "get_rm_cost_from_consumption_entry",
   "column_break_3",
   "backflush_raw_materials_based_on",
-  "capacity_planning",
+  "validate_components_quantities_per_bom",
-  "disable_capacity_planning",
+  "bom_section",
-  "allow_overtime",
+  "update_bom_costs_automatically",
-  "allow_production_on_holidays",
+  "column_break_lhyt",
-  "column_break_5",
+  "manufacture_sub_assembly_in_operation",
-  "capacity_planning_for_days",
-  "mins_between_operations",
   "section_break_6",
   "default_wip_warehouse",
   "default_fg_warehouse",
@@ -30,8 +29,14 @@
   "add_corrective_operation_cost_in_finished_good_valuation",
   "column_break_24",
   "job_card_excess_transfer",
+  "capacity_planning",
+  "disable_capacity_planning",
+  "allow_overtime",
+  "allow_production_on_holidays",
+  "column_break_5",
+  "capacity_planning_for_days",
+  "mins_between_operations",
   "other_settings_section",
-  "update_bom_costs_automatically",
   "set_op_cost_and_scrape_from_sub_assemblies",
   "column_break_23",
   "make_serial_no_batch_from_work_order"
@@ -149,7 +154,7 @@
   {
    "fieldname": "raw_materials_consumption_section",
    "fieldtype": "Section Break",
-   "label": "Raw Materials Consumption"
+   "label": "Raw Materials Consumption "
   },
   {
    "fieldname": "column_break_16",
@@ -183,8 +188,8 @@
   },
   {
    "fieldname": "job_card_section",
-   "fieldtype": "Section Break",
+   "fieldtype": "Tab Break",
-   "label": "Job Card"
+   "label": "Job Card and Capacity Planning"
   },
   {
    "fieldname": "column_break_24",
@@ -210,13 +215,41 @@
    "fieldname": "get_rm_cost_from_consumption_entry",
    "fieldtype": "Check",
    "label": "Get Raw Materials Cost from Consumption Entry"
+  },
+  {
+   "fieldname": "bom_and_work_order_tab",
+   "fieldtype": "Tab Break",
+   "label": "BOM and Production"
+  },
+  {
+   "fieldname": "bom_section",
+   "fieldtype": "Section Break",
+   "label": "BOM"
+  },
+  {
+   "fieldname": "column_break_lhyt",
+   "fieldtype": "Column Break"
+  },
+  {
+   "default": "0",
+   "description": "If enabled then system will manufacture Sub-assembly against the Job Card (operation).",
+   "fieldname": "manufacture_sub_assembly_in_operation",
+   "fieldtype": "Check",
+   "label": "Manufacture Sub-assembly in Operation"
+  },
+  {
+   "default": "0",
+   "depends_on": "eval:doc.backflush_raw_materials_based_on == \"BOM\"",
+   "fieldname": "validate_components_quantities_per_bom",
+   "fieldtype": "Check",
+   "label": "Validate Components Quantities Per BOM"
   }
  ],
  "icon": "icon-wrench",
  "index_web_pages_for_search": 1,
  "issingle": 1,
  "links": [],
- "modified": "2024-02-08 19:00:37.561244",
+ "modified": "2024-09-02 12:12:03.132567",
  "modified_by": "Administrator",
  "module": "Manufacturing",
  "name": "Manufacturing Settings",
@@ -234,4 +267,4 @@
  "sort_order": "DESC",
  "states": [],
  "track_changes": 1
-}
+}

erpnext/manufacturing/doctype/manufacturing_settings/manufacturing_settings.py

@@ -29,15 +29,22 @@ class ManufacturingSettings(Document):
 		get_rm_cost_from_consumption_entry: DF.Check
 		job_card_excess_transfer: DF.Check
 		make_serial_no_batch_from_work_order: DF.Check
+		manufacture_sub_assembly_in_operation: DF.Check
 		material_consumption: DF.Check
 		mins_between_operations: DF.Int
 		overproduction_percentage_for_sales_order: DF.Percent
 		overproduction_percentage_for_work_order: DF.Percent
 		set_op_cost_and_scrape_from_sub_assemblies: DF.Check
 		update_bom_costs_automatically: DF.Check
+		validate_components_quantities_per_bom: DF.Check
 	# end: auto-generated types
 
-	pass
+	def before_save(self):
+		self.reset_values()
+
+	def reset_values(self):
+		if self.backflush_raw_materials_based_on != "BOM" and self.validate_components_quantities_per_bom:
+			self.validate_components_quantities_per_bom = 0
 
 
 def get_mins_between_operations():

erpnext/manufacturing/doctype/work_order/test_work_order.py

@@ -2102,6 +2102,59 @@ class TestWorkOrder(FrappeTestCase):
 
 		stock_entry.submit()
 
+	def test_components_qty_for_bom_based_manufacture_entry(self):
+		frappe.db.set_single_value("Manufacturing Settings", "backflush_raw_materials_based_on", "BOM")
+		frappe.db.set_single_value("Manufacturing Settings", "validate_components_quantities_per_bom", 1)
+
+		fg_item = "Test FG Item For Component Validation"
+		source_warehouse = "Stores - _TC"
+		raw_materials = ["Test Component Validation RM Item 1", "Test Component Validation RM Item 2"]
+
+		make_item(fg_item, {"is_stock_item": 1})
+		for item in raw_materials:
+			make_item(item, {"is_stock_item": 1})
+			test_stock_entry.make_stock_entry(
+				item_code=item,
+				target=source_warehouse,
+				qty=10,
+				basic_rate=100,
+			)
+
+		make_bom(item=fg_item, source_warehouse=source_warehouse, raw_materials=raw_materials)
+
+		wo = make_wo_order_test_record(
+			item=fg_item,
+			qty=10,
+			source_warehouse=source_warehouse,
+		)
+
+		transfer_entry = frappe.get_doc(make_stock_entry(wo.name, "Material Transfer for Manufacture", 10))
+		transfer_entry.save()
+		for row in transfer_entry.items:
+			row.qty = 5
+
+		self.assertRaises(frappe.ValidationError, transfer_entry.save)
+
+		transfer_entry.reload()
+		for row in transfer_entry.items:
+			self.assertEqual(row.qty, 10)
+
+		transfer_entry.submit()
+
+		manufacture_entry = frappe.get_doc(make_stock_entry(wo.name, "Manufacture", 10))
+		manufacture_entry.save()
+		for row in manufacture_entry.items:
+			if not row.s_warehouse:
+				continue
+
+			row.qty = 5
+
+		self.assertRaises(frappe.ValidationError, manufacture_entry.save)
+		manufacture_entry.reload()
+		manufacture_entry.submit()
+
+		frappe.db.set_single_value("Manufacturing Settings", "validate_components_quantities_per_bom", 0)
+
 
 def make_operation(**kwargs):
 	kwargs = frappe._dict(kwargs)

erpnext/public/js/utils/serial_no_batch_selector.js

@@ -368,8 +368,28 @@ erpnext.SerialBatchPackageSelector = class SerialNoBatchBundleUpdate {
 		];
 	}
 
+	get_batch_qty(batch_no, callback) {
+		let warehouse = this.item.s_warehouse || this.item.t_warehouse || this.item.warehouse;
+		frappe.call({
+			method: "erpnext.stock.doctype.batch.batch.get_batch_qty",
+			args: {
+				batch_no: batch_no,
+				warehouse: warehouse,
+				item_code: this.item.item_code,
+				posting_date: this.frm.doc.posting_date,
+				posting_time: this.frm.doc.posting_time,
+			},
+			callback: (r) => {
+				if (r.message) {
+					callback(flt(r.message));
+				}
+			},
+		});
+	}
+
 	get_dialog_table_fields() {
 		let fields = [];
+		let me = this;
 
 		if (this.item.has_serial_no) {
 			fields.push({
@@ -395,6 +415,15 @@ erpnext.SerialBatchPackageSelector = class SerialNoBatchBundleUpdate {
 					fieldname: "batch_no",
 					label: __("Batch No"),
 					in_list_view: 1,
+					change() {
+						let doc = this.doc;
+						if (!doc.qty && me.item.type_of_transaction === "Outward") {
+							me.get_batch_qty(doc.batch_no, (qty) => {
+								doc.qty = qty;
+								this.grid.set_value("qty", qty, doc);
+							});
+						}
+					},
 					get_query: () => {
 						let is_inward = false;
 						if (

erpnext/stock/doctype/stock_entry/stock_entry.py

@@ -232,6 +232,7 @@ class StockEntry(StockController):
 		self.validate_serialized_batch()
 		self.calculate_rate_and_amount()
 		self.validate_putaway_capacity()
+		self.validate_component_quantities()
 
 		if not self.get("purpose") == "Manufacture":
 			# ignore scrap item wh difference and empty source/target wh
@@ -747,6 +748,34 @@ class StockEntry(StockController):
 					title=_("Insufficient Stock"),
 				)
 
+	def validate_component_quantities(self):
+		if self.purpose not in ["Manufacture", "Material Transfer for Manufacture"]:
+			return
+
+		if not frappe.db.get_single_value("Manufacturing Settings", "validate_components_quantities_per_bom"):
+			return
+
+		if not self.fg_completed_qty:
+			return
+
+		raw_materials = self.get_bom_raw_materials(self.fg_completed_qty)
+
+		precision = frappe.get_precision("Stock Entry Detail", "qty")
+		for row in self.items:
+			if not row.s_warehouse:
+				continue
+
+			if details := raw_materials.get(row.item_code):
+				if flt(details.get("qty"), precision) != flt(row.qty, precision):
+					frappe.throw(
+						_("For the item {0}, the quantity should be {1} according to the BOM {2}.").format(
+							frappe.bold(row.item_code),
+							flt(details.get("qty"), precision),
+							get_link_to_form("BOM", self.bom_no),
+						),
+						title=_("Incorrect Component Quantity"),
+					)
+
 	@frappe.whitelist()
 	def get_stock_and_rate(self):
 		"""