Hi Khadija,
Please compare CO report (TA S_ALR_87013613) and BCS table (table FMBDT) if CO and BCS contains the same data. In case they have the same data, then the reset and overwrite option in FMCYCOPI_CO will do nothing because there is nothing to reset and overwrite. Maybe you expect to set all the values to 0 but this is not the right option, for that you need to delete the BCS data with the
program RFFMKU_DEL_DATA.
regards, Gordon