Error in Collective PO

hi all,

Can any one help me out with this error when doing collective PO in Fresh Item Procurement Process.

In Tcode:WDFR

when i am select the article and vendor for Collective PO for Generating Collective PO it gives me

Error: Collective purchase order: error in database selection (vendor 10010, W_FRM_GET_PO_CO)

Message no. WOG026

Diagnosis

A database selection error occurred in determining purchase orders and sales orders for collective purchase order processing.

Thanks in Advance

Regards

saurabh dubey