Error during shipment cost transfer

Hi Experts,

I tried to transfer shipment costs by checking the check box "transfer" in the shipment cost document. When I try to save the document after, I am getting error log as"General error during acceptance posting" wher as the PO has been created which appers at line item level, but I couldn't save the document because of the above mentioned error. Please provide your comments.

Regards,

Emaya