Default Amount field in Infotype 15 with Base valuation

Hi All,

Is it possible to Default the Amount field in for a wagetype in Infortpye 15?

Example, we have bonus(1BON) to be paid in a particular month which is 50% of wagetype 1ABC. 1ABC is a wage type from Basic Pay infotype.

In Table V_T511 for 1BON, I have define INVAL Value B

IN table V_T539J u2013 I have defined 1BON is derived from 1ABC with % = 50.

Still when I go and create record in Infotype 15 for 1BON the amount field is not defaulted. IS that I have missed out something??

Thanks,

Ashwini.