Changing Standard W2 form

Hi Everybody,

I want to change the Left Margin and upper margin values of standard W2 form in SE71. Standard form is allowing me to make and create a transport request for these changes. While i tried to transport these changes to QAS, the transport log is showing me an error message

" Import 01/26/08 14:01:15 (8) Ended with errors.

Method Execution 01/26/08 14:01:15 (8) Ended with errors."

I am not sure if this error is showing because i am making changes to the standard W2 form.

Do i need to copy this standard form and create a new custom form. If yes, then why did it allow me to make changes to the standard form.

Could somebody tell me, do i need to create a new custom form for changes or else can make changes to standard form itself. if so, how?

Appreciate your help.

Thank you

Mamatha