Hi Ajay,
I am using April to March in both FI and SL modules and I would like to change the posting date and period in FI-SL differently from FI..
It looks Aleksey's tip of GCI4 user exit may work.. i have added U01 as user exit for posting date but it is going to dump saying "program RGIFU000 does not exit"
I am working with the help of ABAPer to create ZRGIFU000 and maintain it in table T800M.
Since i am using this exit first time i am looking for a hint..
Regards
Murali