Issue with SC item addition in PO

Hi All,

I am trying to add a SC in PO in this way -

-Edit the PO (already has a service line item)

-Add Item

-Old shopping carts and templates - Search the SC number (it has a service line item), select it and press OK

-It adds a line item in PO but the net quantity and value is 0 and the attachment is no more there (original SC has a valid quantity, value and attachment available)

What could be the possible reason?

Note: Extended Classic Scenario, Shopping cart is in Follow-on Document deleted status.

Thanks and Regards,

Pankaj