Please visit the following URL: http://www.azdor.gov/
You can navigate to the 2010 version of Arizona Form A-4 (Employeeu2019s Arizona Withholding 2010 Percentage Election). The following appears on the form:
Additional amount to be withheld per paycheck $
My understanding is that this is new and effective 07/01/2010. It seems that itu2019s wrongly grayed out. But it may be so new that SAP hasnu2019t yet had time to react. I havenu2019t looked for an SAP Note.