No documents correspond to search criteria while searching for the PO

Hi SRMgurus,

We have upgraded from SRM 5.0 to SRM 7.0.

When we are trying to search for the purchase orders in create confirmation screen, we are getting the error
'No documents correspond to search criteria'. We have assigned the Employee role to user.

We have tried with different search creteria but no succes.

Please provide some inputs.

Best Regards,

Siddappa