Counting Unique Records

C

Chris Waller

Board Regular
Joined
Jan 18, 2009
Messages
183
Office Version
  1. 365
Platform
  1. Windows
I have an Excel Spreadsheet contains 8,000 rows by 30 columns. I am trying to count the number of National Insurance numbers in column F where column S = FAMC and column T = NP. I am trying to count the occurrence of National Insurance numbers that contain this criteria, however, if the nation insurance number appears multiple times I only want to count the first occurrence. I have tried to filter the data using the information in column S and T, but there are still duplicates displayed. Does anyone know of a formula that would cover this eventuality? TIA.
 
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You're welcome. Glad you got it to work. Thanks for the feedback.
 
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