File is not getting transfered in sm35

Dear Techis

I m Executin a BDC thru session method bdc is of Tcode fb01 here i had taken maximum possible Combination of postig keys now problem is for some posting key session ws getting created in sm35 with data and for some posting keys session is getting created without any data..

And wen i tried to combine different posting keys in one flat file session is getting created but with some missing data

Can anybody pls help me regarding tckle dis issue..

Rewards for every helpful ans