I am trying to do a formula that will add up all the values for each part
sold in a specify period.

worksheet is column based , 10000 lines of various different part numbers in
column A, 10000 different sales values column D and 365 different dates
invoiced column H.

I need to break this down to how much each part generated in each quarter eg
today()-90, today())-180 , today()-270, today()-365

please help as I really am stuck on this , im thinking of the lines of a
sumproduct approach, but just cant quite sort it out in my head, many thanks

I would prefer email to my home adress as I can
access this at any time through the day

andy

Will this work for you?

Say you have a master list of your part numbers in Column J.
Start date of calculation in L1
End date of calculation in L2

Enter this in K1:

=SUMPRODUCT(($A$1:$A$10000=J1)*($H$1:$H$10000=$L$ 1)*($H$1:$H$10000<=$L$2)*$
D$1:$D$10000)

And copy down as far as the length of the master parts number list.
--
HTH,

RD

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"ANDY CALLAGHAN" <ANDY wrote in message
...
I am trying to do a formula that will add up all the values for each part
sold in a specify period.

worksheet is column based , 10000 lines of various different part numbers
in
column A, 10000 different sales values column D and 365 different dates
invoiced column H.

I need to break this down to how much each part generated in each quarter
eg
today()-90, today())-180 , today()-270, today()-365

please help as I really am stuck on this , im thinking of the lines of a
sumproduct approach, but just cant quite sort it out in my head, many
thanks

I would prefer email to my home adress as I can
access this at any time through the day

andy