May I know what formula must I enter at C1 and copy down to locate the
identical references in column A ?

A B C
1 C012 XXX OK
2 B114 XXX MULTIPLE
3 B114 XXX MULTIPLE
4 B114 MULTIPLE
5 F258 OK
6 G652 OK
7 N144 MULTIPLE
8 N144 MULTIPLE
9 T620 OK
10 L862 OK

I need to group together those entries by sorting after that.

Thanks

Low





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A36B58K641