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SUMPRODUCT returns #REF! unless source workbook is open

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    Question SUMPRODUCT returns #REF! unless source workbook is open

    Does anybody have any idea, why does the Sumproduct formula not update when source wbook is closed. These files even in trusted locations.

    Cheers!

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    Forum Moderator Glenn Kennedy's Avatar
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    Re: SUMPRODUCT returns #REF! unless source workbook is open

    Wow!!!! What a lot of detail!!!

    What formula are you using?
    Glenn




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    Forum Moderator Glenn Kennedy's Avatar
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    Re: SUMPRODUCT returns #REF! unless source workbook is open

    If you have an INDIRECT in the formula: it won't work on closed sheets. If you're using structured table references in the formula, they won't work either...

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    Re: SUMPRODUCT returns #REF! unless source workbook is open

    Thank you,
    I have figured it out, I was using table references in my formula that's why it doesn't calculate when it was close. However I prefer not to calculate automatically, because when I use entire column in formula, both my workbooks slows down.
    New question is there anyway to prevent slow downs with automatic calculation is turned on?

    cangokturk

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    Forum Moderator Glenn Kennedy's Avatar
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    Re: SUMPRODUCT returns #REF! unless source workbook is open

    Can you select a range, rather than the whole column, but use a range that's "reasonably" future proof? Do you really need to include 1,000,000 rows - which is what you're using with whole column refs.??

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    Re: SUMPRODUCT returns #REF! unless source workbook is open

    Quote Originally Posted by cangokturk View Post
    I prefer not to calculate automatically, because when I use entire column in formula, both my workbooks slows down.
    New question is there anyway to prevent slow downs with automatic calculation is turned on?
    Don't use entire columns as references with the SUMPRODUCT function.

    Use smaller specific ranges:

    NO: A:A
    YES: A2:A1000

    If you don't know how much data there might be then just use a range size that you know you won't exceed.
    Biff
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    Let's Go Pens. We Want The Cup.

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    Re: SUMPRODUCT returns #REF! unless source workbook is open

    Quote Originally Posted by Glenn Kennedy View Post
    Can you select a range, rather than the whole column, but use a range that's "reasonably" future proof? Do you really need to include 1,000,000 rows - which is what you're using with whole column refs.??
    Thank you Glenn for the explanation. Your staement was very intelligible.

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    Re: SUMPRODUCT returns #REF! unless source workbook is open

    You're welcome!

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