FBL3N enhanced with custom fields

Dear Mentors,

There is standard t-code FBL3N for G/L accounts item display,

I have added few custom fileds in that standard layout by using BTE's and added logic, done mailing functionality as per the requirement and job scheduled through sm36 T-code.

While output  display data is populating for standard fileds as well as custom fileds which i have added using BTE's .and same custom fileds data is not Displying after output of report sent to the mail,but it is showing data for standard fields, custom fields dats is updated in respective data base tables successfully.

Regards,

Wilson.