diff --git a/erpnext/accounts/doctype/pricing_rule/utils.py b/erpnext/accounts/doctype/pricing_rule/utils.py
index d4f634a..8ae2eb7 100644
--- a/erpnext/accounts/doctype/pricing_rule/utils.py
+++ b/erpnext/accounts/doctype/pricing_rule/utils.py
@@ -740,10 +740,10 @@
 	if coupon.valid_from:
 		if coupon.valid_from > getdate(today()):
 			frappe.throw(_("Sorry, this coupon code's validity has not started"))
-	if coupon.valid_upto:
+	elif coupon.valid_upto:
 		if coupon.valid_upto < getdate(today()):
 			frappe.throw(_("Sorry, this coupon code's validity has expired"))
-	if coupon.used >= coupon.maximum_use:
+	elif coupon.used >= coupon.maximum_use:
 		frappe.throw(_("Sorry, this coupon code is no longer valid"))
 
 
diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index 6990310..872327f 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -271,6 +271,8 @@
 		validate_inter_company_party(
 			self.doctype, self.customer, self.company, self.inter_company_invoice_reference
 		)
+
+		# Validating coupon code
 		if self.coupon_code:
 			validate_coupon_code(self.coupon_code)