Hi,
first issue - you have do column access badi HRHAP_COLUMN_ACCESS.
do this logic import parameter appraisee ,appraiser ,reviewer numbers are comeing.
select single pernr from pa0105 ito wa where username = sy-uname and subtype = 0001.
if wa eq import parameter appraisee
pass export = 'x' means hide the columns .
elsf wa eq appraiser.
pass 'x'.
elsif wa eq reviewer.
pass 'x' and colmn id.
endif.
second issue : its coming from config side.
third issue: need to execute standard powl it will clear the holdings dates.
Regards
Jayaprakash T.