Hi Experts,
can anyone suggest whether it would be possible to fulfill the above requirement?
i have tried below options but none worked:
Dynamic Action: i tried using all operations COP, MOD, INS, INSS etc but nothing works to fullfil the complete requirement. (some doesn't pick up the correct dates, some doesn't update default the position etc...)
User Exit: i tried defaulting the position to 99999999 using the Exit: PBAS0001 but it doesn't update any infotype other than 0000.
Enhancement: i tried putting enhancements at different places and tried to default the position to 99999999 but at the end it again, regains its old value... 
in advance, thanks for your suggestions.
Regards,
Kush