Error in record updating in Client-430

Hi Experts,

While I am using transaction PA30 for maintaining infotype 0002 and 0025; at the time of saving the record, one pop-up is coming in which the error message is " The Client 430 is non-modifiable". After pressing the enter button, my record is getting saved.

But while updating other infotypes, i am not facing this type problem. As becoz i will be updating these infotypes via some RFC enabled FM from some other applications, so this process is getting complicated.

So can anybody plz let me know how to avoid this POP-UP, at the time of saving these Infotype 0002 & 0025 via the transaction PA30.

Plz treat this urgent and suggest me what are the various things i should go for checking.

Thanks in advance

Sangram