unit of measurewhile sales order creation not getting updated in table VBAP

Hi All,

While creating sales order without reference to contract the unit of measurements entered at line item level is getting updated in sales order item level table i.e, VBAP and field is ZIEME.

Similarly when i am creating the sales order through contract reference unit of measurement entered at line item level is not getting updated in table VBAP and field is ZIEME.

So please suggest how to make reflect unit of measure in table VBAP (or) how to retrieve unit of measure value from VBAP table.

Pls suggest.

Regards,