countif does not work

  1. A

    COUNTIFS - dragging formula across cells while adding to the range

    Essentially, I am trying to count the number of "first time customers" every month. I have a list of customers and for every month, it lists how much they ordered. There will be a "0" up until their first month they order, when it will then have a value greater than 1. So in my list of...
    • aadeli
    • Thread
    • countif does not work countifs countifs arrays
    • Replies: 3
    • Forum: Excel Questions
  2. L

    Problems with -countif formula to prevent duplicate cells

    I FOLLOWED ALL THE STEPS INDICATED ON YOUR AND OTHER WEBSITES AND FOR SOME UNKNOWN REASON IT DOES NOT WORK. I TRIED BOTH FORMULAS =COUNTIF(B:B,B1)=1 and =COUNTIF(B2:B500,B2)=1 THE SYSTEM STILL ALLOWS ME TO ENTER DUPLICATE ENTRIES. PLEASE HELP!
    • Legacy 360638
    • Thread
    • =countif formula allows duplicate entries countif does not work problems with countif
    • Replies: 3
    • Forum: Excel Questions

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