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Counting unique values across an array

e119687

New Member
I work with serialized parts. When something goes wrong with a group of parts, I must list all the affected serial numbers. There are several different things that can go wrong so in a single sheet, I list the problem and then the affected serial numbers.

I need to be able to look across the entire population of data and retrieve a count of the number of unique serial numbers.

Spread sheet attached.

Any help that can be provided would be greatly appreciated.
 

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e119687

New Member
As an addendum to this post, if the result could also include a number of instances a given SN is present in the array that would also be beneficial.
 
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