SRM Approve Shopping Carts

Hi All

I've implemented setup and configured the SAP SRM Approve Shopping Carts Fiori Application.

Requisitions are appearing fine as are items when clicking on the requisitions.

However when i click on the item in the cart the following error appears.

{"error":{"code":"005056A509B11EE1B9A8FEC11C22578E","message":{"lang":"en","value":"Invalid key name in key predicate. Expected name is 'SAP__Origin, ItemNumber'"},"innererror":

Any suggestions at all ?

Regards

James