Document Type is Blank in Standard Vocuher entry

i Folks,

I am working on a Standard Voucher Entry P0411.

I have two problems on this application :

1. Document Type is not defaulted to PV as setup in P0400047 (MBF for voucher entry) is set to PV. I refer this MBF version in my P0411 application.

2. Although I enter the Document type manually while creating the vouchers, system doesn't get it saved. The line item is created without doc type.

Are these two problems are interconnected? Any resolution for this?

Thanks,

Magesh