You can't change the default settings for the data fields. If a field
contains blank cells, or cells with text, it will default to COUNT.
Otherwise, it will SUM.

There's a feature that changes all the data fields to SUM, in my pivot
table add-in, that you can download he

http://www.contextures.com/xlPivotAddIn.html

Denise wrote:
Hello,

Is it possible to save sum as the automatic setting on a pivot table before
you start to add fields/items?

Thank you,

Denise

--
Debra Dalgleish
Excel FAQ, Tips & Book List
http://www.contextures.com/tiptech.html