Hi again,

I posted a similar question a week or so back - but now I'm having
trouble with using the SUMPRODUCT or SUM(IF( type function, especially
when the ranges I'm referring to in these functions have #NUM!
references.

btw - thanks Frank, Aladin for your previous advice on a similar
question.

Using the SUMIF function somehow aviods this problem, but not when
summing using multiple criterias (ie. SUMPRODUCT or SUM(IF( array
type.

Can anyone help me in avioding the #NUM!? Is it possible?

Here is an example of the functions:

=SUMPRODUCT((RangeName1="Customer")*(RangeName2=10 00)*TheSumRange)
This returns #NUM! - I guess because all of my ranges include #NUM!.

The other array type:
=SUM(IF(RangeName1="Customer")*(RangeName2=1000),T heSumRange)
This also returns #NUM!. I tried wrapping this with an ISERROR but
couldn't get it to work - eg.

=SUM(IF(ISERROR(RangeName1="Customer")*(RangeName2 =1000),TheSumRange),,(RangeName1="Customer")*(Rang eName2=1000),TheSumRange))

Assuming I want to leave the error terms within the list - can this be
done?

Again your help appreciated.

Elijah