Objective is to reference the sheet 'data' which has dd-mm-yyyy in column A and currency values in column I. Seems simple enough but returns 0.
The formula resides in e.g. C40 (C41, C42 etc) and is
=SUMPRODUCT((TEXT(data!$A$2:$A$100,"mmm-yy")=TEXT($B40,"mmm-yy"))*(data!$A$2:$A$100=$B40),data!$I$2:$I$100)
B40 has Mar-11 and there a number of rows in the sheet data that have a value in Column I with a March date.
The formula resides in e.g. C40 (C41, C42 etc) and is
=SUMPRODUCT((TEXT(data!$A$2:$A$100,"mmm-yy")=TEXT($B40,"mmm-yy"))*(data!$A$2:$A$100=$B40),data!$I$2:$I$100)
B40 has Mar-11 and there a number of rows in the sheet data that have a value in Column I with a March date.