HR user exit....PBAS0001 not triggering

Hi Experts,

I am trying to default values for General Benefit Infotype by using transaction PA30, also using the user exit for this is PBAS0001 PA: Pers.Admin./Recruitment: Default values and checks. I have done everything from my side like activation of project, assignment of user exit , its activation and break point ( hard code and dynamic). But It is not triggering while display mode.

I want to know when will the transaction trigger this exit ( only display or create or change). Please share your experience if you come across.

Regards,

Ravi.