diff --git a/erpnext/utilities/transaction_base.py b/erpnext/utilities/transaction_base.py
index 7f27ab6..298e111 100644
--- a/erpnext/utilities/transaction_base.py
+++ b/erpnext/utilities/transaction_base.py
@@ -32,7 +32,21 @@
 		self.validate_future_posting()
 		self.validate_with_last_transaction_posting_time()
 	
+	def is_stock_transaction(self):
+		if self.doctype not in ["Sales Invoice", "Purchase Invoice", "Stock Entry", "Stock Reconciliation",
+			"Delivery Note", "Purchase Receipt", "Fees"]:
+				return False
+
+		if self.doctype in ["Sales Invoice", "Purchase Invoice"]:
+			if not (self.get("update_stock") or self.get("is_pos")):
+				return False
+
+		return True
+	
 	def validate_future_posting(self):
+		if not self.is_stock_transaction():
+			return
+
 		if getattr(self, 'set_posting_time', None) and date_diff(self.posting_date, nowdate()) > 0:
 			msg = _("Posting future transactions are not allowed due to Immutable Ledger")
 			frappe.throw(msg, title=_("Future Posting Not Allowed"))
@@ -168,13 +182,8 @@
 
 	def validate_with_last_transaction_posting_time(self):
 
-		if self.doctype not in ["Sales Invoice", "Purchase Invoice", "Stock Entry", "Stock Reconciliation",
-			"Delivery Note", "Purchase Receipt", "Fees"]:
-				return
-
-		if self.doctype in ["Sales Invoice", "Purchase Invoice"]:
-			if not (self.get("update_stock") or self.get("is_pos")):
-				return
+		if not self.is_stock_transaction():
+			return
 
 		for item in self.get('items'):
 			last_transaction_time = frappe.db.sql("""