I am using the Method "set_table_for_first_display" for displaying ALV output.And using the total and sub total Functionality by using standard ALV functionality for calculating the Currency amount,it is calculating but while downloading with sub total(Using Standard functionality) it is giving dump saying that"Overwriting the protected field". with out subtotal it is downloading properly.
For displaying the amount as currency wise i am using the
wa_fieldcat-cfieldname = 'WAERS'. could you please suggest me how to elimanate this problem.