feat: add provision for process loss in manufac

erpnext/stock/doctype/stock_entry/stock_entry.py

@@ -463,7 +463,7 @@ class StockEntry(StockController):
 		"""
 		# Set rate for outgoing items
 		outgoing_items_cost = self.set_rate_for_outgoing_items(reset_outgoing_rate, raise_error_if_no_rate)
-		finished_item_qty = sum(d.transfer_qty for d in self.items if d.is_finished_item)
+		finished_item_qty = sum(d.transfer_qty for d in self.items if d.is_finished_item or d.is_process_loss)
 
 		# Set basic rate for incoming items
 		for d in self.get('items'):
@@ -484,6 +484,8 @@ class StockEntry(StockController):
 					raise_error_if_no_rate=raise_error_if_no_rate)
 
 			d.basic_rate = flt(d.basic_rate, d.precision("basic_rate"))
+			if d.is_process_loss:
+				d.basic_rate = flt(0.)
 			d.basic_amount = flt(flt(d.transfer_qty) * flt(d.basic_rate), d.precision("basic_amount"))
 
 	def set_rate_for_outgoing_items(self, reset_outgoing_rate=True, raise_error_if_no_rate=True):
@@ -1041,6 +1043,7 @@ class StockEntry(StockController):
 
 		self.set_scrap_items()
 		self.set_actual_qty()
+		self.adjust_qty_for_process_loss()
 		self.validate_customer_provided_item()
 		self.calculate_rate_and_amount()
 
@@ -1398,6 +1401,7 @@ class StockEntry(StockController):
 				get_default_cost_center(item_dict[d], company = self.company))
 			se_child.is_finished_item = item_dict[d].get("is_finished_item", 0)
 			se_child.is_scrap_item = item_dict[d].get("is_scrap_item", 0)
+			se_child.is_process_loss = item_dict[d].get("is_process_loss", 0)
 
 			for field in ["idx", "po_detail", "original_item",
 				"expense_account", "description", "item_name", "serial_no", "batch_no"]:
@@ -1576,6 +1580,23 @@ class StockEntry(StockController):
 			if material_request and material_request not in material_requests:
 				material_requests.append(material_request)
 				frappe.db.set_value('Material Request', material_request, 'transfer_status', status)
+				
+	def adjust_qty_for_process_loss(self):
+		process_loss_dict = {}
+		for d in self.get("items"):
+			if not d.is_process_loss:
+				continue
+			if d.item_code not in process_loss_dict:
+				process_loss_dict[d.item_code] = [flt(0), flt(0)]
+			process_loss_dict[d.item_code][0] += flt(d.transfer_qty)
+			process_loss_dict[d.item_code][1] += flt(d.qty)
+
+		for d in self.get("items"):
+			if not d.is_finished_item or d.item_code not in process_loss_dict:
+				continue
+			# Assumption: 1 FG has 1 row.
+			d.transfer_qty -= process_loss_dict[d.item_code][0]
+			d.qty -= process_loss_dict[d.item_code][1]
 
 	def set_serial_no_batch_for_finished_good(self):
 		args = {}

erpnext/stock/doctype/stock_entry_detail/stock_entry_detail.json

@@ -19,6 +19,7 @@
   "is_finished_item",
   "is_scrap_item",
   "quality_inspection",
+  "is_process_loss",
   "subcontracted_item",
   "section_break_8",
   "description",
@@ -543,13 +544,19 @@
    "no_copy": 1,
    "print_hide": 1,
    "read_only": 1
+  },
+  {
+   "default": "0",
+   "fieldname": "is_process_loss",
+   "fieldtype": "Check",
+   "label": "Is Process Loss"
   }
  ],
  "idx": 1,
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2021-06-21 16:03:18.834880",
+ "modified": "2021-06-22 16:47:11.268975",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Stock Entry Detail",