extract date, networkdays and sumproduct

[K]

I have a major formula that I'm trying to figure out and I needed some help.

Column A= ID#s
Column B= Status
Column C= End dates
Column D=Responses

Column D responses are as follows:
AL 7/8/08
NI 8/9/08
WL 6/20/08
RCC 7/8/08
WLC 5/15/08
Each cell in a column can have only one of these responses.

I basically want to do the following:

For all ID#'s (Column A):
If status (column B) = "Closed"
AND If first 2 letters of (column D) = "AL"
Extract date out.
Find out the # of network days between extracted date and end date (column C)
and count them if the # of network days <=5

Repeat for all ID#s

I know I will be using sumproduct, but how do I extract dates, convert them
to date format, find the networdays? Can I use sumproduct with networkdays??

 

[Bob Phillips]

Here is an array formula

=SUM(IF(B2:B20<>"",IF((B2:B20="Closed")*(C2:C20-MID(D220,FIND("
",D220)+1,99)>=5),C2:C20-MID(D220,FIND(" ",D220)+1,99))))

 

[K]

Question: why do you do +199?

I see that you are ommitting the ones that are greater than 5, but by doing
a plain subtraction we can't eliminate weekends or any predefined holidays.

 

[Bob Phillips]

I don't, it is +1, 99

Forgot the networkdays, that will need more work as Networkdays doesn't work
in an array formula.

 

[K]

So what's the purpose of the +1,99?

Also could a countif work here? Can networkdays work with that?

 

[Bob Phillips]

The +1, 99 is to get the first character after a space, and get up to 99
characters (in reality there will be far less).

Functions like COUNTIF won't work with embedded functions in the lookup
ranges.