Reg USER EXIT PBAS0001

Hi,

In our company , during hire action in Pa40, when the user hits save button on infotype 8, we have to add one more wage type say '/xxxx' and amount say 'xxx' . sow when the user comes back and checks that..he will be seeing the standard wage /1000 and the wagetype amopunt ,we have add. so I went and found the USER EXIT PBAS0001 , in that EXIT_SAPFP50M_002 , i noticed INCLUDE ZXPADU02.

1) is my approach correct?.

2)I am writing code like this

data: i0008 like p0008.

case innnn-infty.

when ‘0008’.

move innnn to i000

-

-

move i000 to innnn.

endcase.

Our system is unicode system, getting errors. how shoud i write the code