fix: Stock Reconciliation Insufficient Stock Error (#37494)

* fix: Stock Reconciliation Insufficient Stock Error

* fix: linter

* test: add test case for Stock Reco Batch Item

erpnext/stock/doctype/stock_reconciliation/test_stock_reconciliation.py

@@ -956,6 +956,58 @@ class TestStockReconciliation(FrappeTestCase, StockTestMixin):
 
 		self.assertRaises(frappe.ValidationError, sr.save)
 
+	@change_settings("Stock Settings", {"allow_negative_stock": 0})
+	def test_backdated_stock_reco_for_batch_item_dont_have_future_sle(self):
+		# Step - 1: Create a Batch Item
+		from erpnext.stock.doctype.item.test_item import make_item
+
+		item = make_item(
+			properties={
+				"is_stock_item": 1,
+				"has_batch_no": 1,
+				"create_new_batch": 1,
+				"batch_number_series": "TEST-BATCH-.###",
+			}
+		).name
+
+		# Step - 2: Create Opening Stock Reconciliation
+		sr1 = create_stock_reconciliation(
+			item_code=item,
+			warehouse="_Test Warehouse - _TC",
+			qty=10,
+			purpose="Opening Stock",
+			posting_date=add_days(nowdate(), -2),
+		)
+
+		# Step - 3: Create Stock Entry (Material Receipt)
+		from erpnext.stock.doctype.stock_entry.test_stock_entry import make_stock_entry
+
+		se1 = make_stock_entry(
+			item_code=item,
+			target="_Test Warehouse - _TC",
+			qty=100,
+		)
+
+		# Step - 4: Create Stock Entry (Material Issue)
+		make_stock_entry(
+			item_code=item,
+			source="_Test Warehouse - _TC",
+			qty=100,
+			batch_no=se1.items[0].batch_no,
+			purpose="Material Issue",
+		)
+
+		# Step - 5: Create Stock Reconciliation (Backdated) after the Stock Reconciliation 1 (Step - 2)
+		sr2 = create_stock_reconciliation(
+			item_code=item,
+			warehouse="_Test Warehouse - _TC",
+			qty=5,
+			batch_no=sr1.items[0].batch_no,
+			posting_date=add_days(nowdate(), -1),
+		)
+
+		self.assertEqual(sr2.docstatus, 1)
+
 
 def create_batch_item_with_batch(item_name, batch_id):
 	batch_item_doc = create_item(item_name, is_stock_item=1)

erpnext/stock/stock_ledger.py

@@ -1617,27 +1617,33 @@ def is_negative_with_precision(neg_sle, is_batch=False):
 	return qty_deficit < 0 and abs(qty_deficit) > 0.0001
 
 
-def get_future_sle_with_negative_qty(args):
-	return frappe.db.sql(
-		"""
-		select
-			qty_after_transaction, posting_date, posting_time,
-			voucher_type, voucher_no
-		from `tabStock Ledger Entry`
-		where
-			item_code = %(item_code)s
-			and warehouse = %(warehouse)s
-			and voucher_no != %(voucher_no)s
-			and timestamp(posting_date, posting_time) >= timestamp(%(posting_date)s, %(posting_time)s)
-			and is_cancelled = 0
-			and qty_after_transaction < 0
-		order by timestamp(posting_date, posting_time) asc
-		limit 1
-	""",
-		args,
-		as_dict=1,
+def get_future_sle_with_negative_qty(sle):
+	SLE = frappe.qb.DocType("Stock Ledger Entry")
+	query = (
+		frappe.qb.from_(SLE)
+		.select(
+			SLE.qty_after_transaction, SLE.posting_date, SLE.posting_time, SLE.voucher_type, SLE.voucher_no
+		)
+		.where(
+			(SLE.item_code == sle.item_code)
+			& (SLE.warehouse == sle.warehouse)
+			& (SLE.voucher_no != sle.voucher_no)
+			& (
+				CombineDatetime(SLE.posting_date, SLE.posting_time)
+				>= CombineDatetime(sle.posting_date, sle.posting_time)
+			)
+			& (SLE.is_cancelled == 0)
+			& (SLE.qty_after_transaction < 0)
+		)
+		.orderby(CombineDatetime(SLE.posting_date, SLE.posting_time))
+		.limit(1)
 	)
 
+	if sle.voucher_type == "Stock Reconciliation" and sle.batch_no:
+		query = query.where(SLE.batch_no == sle.batch_no)
+
+	return query.run(as_dict=True)
+
 
 def get_future_sle_with_negative_batch_qty(args):
 	return frappe.db.sql(