BDC problem

Hi,

I have developed a BDC program for QA12 in Call transaction.Normally i need to pass around 10 records at once.

While iam giving mode 'A' the data is getting saved(pressing enter,enter..)

But if i give mode 'N' data is not getting saved(not passed into screen fields).

What might be the reason? Do i need to give some thing like "WAIT UP TO 12 SECONDS" ?

Points guaranteed

cheers

kaki