1 files changed, 2 insertions, 1 deletions
diff --git a/gsxws.py b/gsxws.py
index 7800e24..a768af0 100755
--- a/gsxws.py
+++ b/gsxws.py
@@ -598,13 +598,14 @@ class Returns(GsxObject):
         """
         pass
 
-    def register_parts(self):
+    def register_parts(self, parts):
         """
         The Register Parts for Bulk Return API creates a bulk return for 
         the registered parts.
         The API returns the Bulk Return Id with the packing list.
         """
         dt = self._make_type('ns1:registerPartsForBulkReturnRequestType')
+        self.data['bulkReturnOrder'] = parts
         dt.bulkPartsRegistrationRequest = self.data
         return self.submit('RegisterPartsForBulkReturn', dt, 'bulkPartsRegistrationResponse')