Extension Scenario Problem

Hi, experts,

     I created a scenario (SalesOrder -General Information to Invoice Request-General Information)

     And I extended a field to SalesOrder with that scenario and referenced that field in CustomerInvoiceRequest.

     I saved a sales order with some data in the extended field and I created a down payment from that sales order.

     I wanted to carry the extension value from Sales Order to Customer Invoice Request when  I create the down payment from a particular Sales Order.   

     But the extension field's data is lost in the result down payment.

     The extended field value did not show up in the down payment.

     What should I do about this? I don't know why.     

      Any tips??

Regards,

Fred