diff --git a/utilities/transaction_base.py b/utilities/transaction_base.py
index d2bffcf..aace0cb 100644
--- a/utilities/transaction_base.py
+++ b/utilities/transaction_base.py
@@ -55,6 +55,8 @@
 		return self._party_type_and_name
 			
 	def get_customer_defaults(self):
+		if not self.doc.customer: return {}
+		
 		out = self.get_default_address_and_contact("customer")
 
 		customer = webnotes.doc("Customer", self.doc.customer)