I want to use SUMPRODUCT with multiple criteria...I want to count if how many certificates have been completed when filtered by year,,
I have a dropped down list by year in H3 (it contains a data validation of years...2009,2010,2011,2013....) to be used in filtering O13:O5167
but I only want to count O13:O5167 IF M13:M5167 has a punchlist value "OK"
please help me,,,,,
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