fix: validate Subcontracting Order in Stock Entry

(cherry picked from commit 9a3dcb9)

erpnext/stock/doctype/stock_entry/stock_entry.py

@@ -117,6 +117,7 @@ def validate(self):
 		self.validate_work_order()
 		self.validate_bom()
 		self.validate_purchase_order()
+		self.validate_subcontracting_order()
 
 		if self.purpose in ("Manufacture", "Repack"):
 			self.mark_finished_and_scrap_items()
@@ -959,6 +960,20 @@ def validate_purchase_order(self):
 					)
 				)
 
+	def validate_subcontracting_order(self):
+		if self.get("subcontracting_order") and self.purpose in [
+			"Send to Subcontractor",
+			"Material Transfer",
+		]:
+			sco_status = frappe.db.get_value("Subcontracting Order", self.subcontracting_order, "status")
+
+			if sco_status == "Closed":
+				frappe.throw(
+					_("Cannot create Stock Entry against a closed Subcontracting Order {0}.").format(
+						self.subcontracting_order
+					)
+				)
+
 	def mark_finished_and_scrap_items(self):
 		if any([d.item_code for d in self.items if (d.is_finished_item and d.t_warehouse)]):
 			return