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kittronald kittronald is offline
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Default SMALL function to find smallest number greater than 0

*** CORRECTION ***

The formula should read:

=IF(COUNTIF(Names,$B2)=1,"",IF(SUMPRODUCT(SMALL(IN DEX(Names=
$B2,)*INDEX(LEFT(Codes,LEN($A2))=$A2,)*INDEX(LEN(C odes),),
1))0,"","Duplicate"))


- Ronald K.