Discount condition RA00 is missing in Service Entry Sheet

Dear Friends,

I have created a service PO with a discount (condition RA00). While creating SES, it is showing the gross price amount with out discount.

If I check SES condition discount condition is missing. But if I check from FI side, documents are posted with discount.

And of course invoice is also posted with discount.

What could be the issue?

Regards,

Sham.