diff --git a/erpnext/accounts/doctype/budget/budget.py b/erpnext/accounts/doctype/budget/budget.py
index 5fc4fbf..15d6f10 100644
--- a/erpnext/accounts/doctype/budget/budget.py
+++ b/erpnext/accounts/doctype/budget/budget.py
@@ -63,7 +63,7 @@
 				and frappe.db.get_value("Account", {"name": args.account, "root_type": "Expense"}):
 
 			if args.project:
-				condition = "and exists(select name from `tabProject` where name=b.project)"
+				condition = "and b.project='%s'" % frappe.db.escape(args.project)
 				args.budget_against_field = "Project"
 			
 			elif args.cost_center:
@@ -88,12 +88,13 @@
 			""".format(condition=condition, 
 				budget_against_field=frappe.scrub(args.get("budget_against_field"))),
 				(args.fiscal_year, args.account), as_dict=True)
-
-			validate_budget_records(args, budget_records)
+				
+			if budget_records:
+				validate_budget_records(args, budget_records)
 
 def validate_budget_records(args, budget_records):
 	for budget in budget_records:
-		if budget.budget_amount:
+		if flt(budget.budget_amount):
 			yearly_action = budget.action_if_annual_budget_exceeded
 			monthly_action = budget.action_if_accumulated_monthly_budget_exceeded
 
diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index db6d594..c5aa7ea 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -651,32 +651,34 @@
 	def make_pos_gl_entries(self, gl_entries):
 		if cint(self.is_pos):
 			for payment_mode in self.payments:
-				# POS, make payment entries
-				gl_entries.append(
-					self.get_gl_dict({
-						"account": self.debit_to,
-						"party_type": "Customer",
-						"party": self.customer,
-						"against": payment_mode.account,
-						"credit": payment_mode.base_amount,
-						"credit_in_account_currency": payment_mode.base_amount \
-							if self.party_account_currency==self.company_currency \
-							else payment_mode.amount,
-						"against_voucher": self.return_against if cint(self.is_return) else self.name,
-						"against_voucher_type": self.doctype,
-					}, self.party_account_currency)
-				)
+				if payment_mode.amount:
+					# POS, make payment entries
+					gl_entries.append(
+						self.get_gl_dict({
+							"account": self.debit_to,
+							"party_type": "Customer",
+							"party": self.customer,
+							"against": payment_mode.account,
+							"credit": payment_mode.base_amount,
+							"credit_in_account_currency": payment_mode.base_amount \
+								if self.party_account_currency==self.company_currency \
+								else payment_mode.amount,
+							"against_voucher": self.return_against if cint(self.is_return) else self.name,
+							"against_voucher_type": self.doctype,
+						}, self.party_account_currency)
+					)
 
-				payment_mode_account_currency = get_account_currency(payment_mode.account)
-				gl_entries.append(
-					self.get_gl_dict({
-						"account": payment_mode.account,
-						"against": self.customer,
-						"debit": payment_mode.base_amount,
-						"debit_in_account_currency": payment_mode.base_amount \
-							if payment_mode_account_currency==self.company_currency else payment_mode.amount
-					}, payment_mode_account_currency)
-				)
+					payment_mode_account_currency = get_account_currency(payment_mode.account)
+					gl_entries.append(
+						self.get_gl_dict({
+							"account": payment_mode.account,
+							"against": self.customer,
+							"debit": payment_mode.base_amount,
+							"debit_in_account_currency": payment_mode.base_amount \
+								if payment_mode_account_currency==self.company_currency \
+								else payment_mode.amount
+						}, payment_mode_account_currency)
+					)
 				
 	def make_gle_for_change_amount(self, gl_entries):
 		if cint(self.is_pos) and self.change_amount: