BDC MK02

Hi Experts,

I created BDC program using session method,

For transaction code MK02,--for changing vendor detail.

I done it successfully but when ever I am processing it with sample .it asking vendor number. Even through vendor number is there in flat file

Here is the sample data which there in flat file..

1003 3000 Dr. bondy car sandy 310 Marine Ave 654564 sandy city 90710 LOS ANGELES 70456 BA EN 88888 999991

Here-1003 is vendor number

Plese hep me out of this..

Thanks in advance

Sandy......