Debug CIF on R/3 and APO side.

Dear All,

I want to debug CIF on R/3 and APO side for an issue.

The transaction data is sent from R3 to APO, during this transaction for some countries the PO number is sent to APO while in some case Delivery number is sent to APO.

I want to find out why in some case Delivery number is sent to APO from R3.

I don't have any idea on CIF debugging, so would appreciate if some basic details regarding CIF is provided.

Thank You.

Regards,

Krunal Raichura