diff --git a/rattail/batch/custorder.py b/rattail/batch/custorder.py
index b5f404c42167f02484c3024cd55a2695c53f3c8f..55cbdacf8533c8fa52332c7ba56b9cf5b3fba920 100644
--- a/rattail/batch/custorder.py
+++ b/rattail/batch/custorder.py
@@ -107,7 +107,28 @@ class CustomerOrderBatchHandler(BatchHandler):
 
         session = self.app.get_session(batch)
         session.flush()
-        session.refresh(batch)
+
+    def get_contact_notes(self, batch):
+        """
+        Get extra "contact notes" which should be made visible to the
+        user who is entering the new order.
+        """
+        notes = []
+        customer_required = self.new_order_requires_customer()
+
+        invalid = False
+        if customer_required:
+            if batch.customer:
+                invalid = [email for email in batch.customer.emails
+                           if email.invalid]
+        else:
+            if batch.person:
+                invalid = [email for email in batch.person.emails
+                           if email.invalid]
+        if invalid:
+            notes.append("Customer has one or more invalid email addresses on file.")
+
+        return notes
 
     def unassign_contact(self, batch, **kwargs):
         """