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Use of Countif Value

We know that Countif formula is of form



This formula can also be used to find duplicate value

=countif(RAnge,SELECT ONE CELL)

If there are unique values (no duplicate) ,it will show 1

if there are 2 values,it wil show 2

if there are 3 values,it wil show 3





Here,in custom field,we can put following COUNTIF Formula

COUNTIF(Select Range, Select Range in Criteria)=1

Note:-While selecting range ,we have to press F4



Prepare Data Validation on column so that no duplicate Bill No entered in columns

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Find Duplicate Values Using Data Validation - Data Validation

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.