need formula help to highlight date ranges

[CRAIG20]

Hi. I have 2 columns A & B which contain a list of customer numbers (A) and dates (B)

I would like a formula for column C which will show the word 'REPORT' if the customer number in A also appears at a date in the previous 90 days. The dates are beside the customer numbers

Thanks

Craig

[etaf]

=IF(AND(COUNTIF($A$2:$A$55,A2)>1,COUNTIF(B2,">"&TODAY()-90)>0),"Report","")

where A55 is the last row in the customer list

[CRAIG20]

tHANKS. iT SAYS "YOU'VE ENETERED TOO MANY ARGUMENTS FOR THIS FUNCTION"

[etaf]

i have checked the formula and its working OK
I copied from the post above and then pasted into a new column and it worked

see attached

[CRAIG20]

Great. Thank you very much.

[arlu1201]

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