Mike: thank you for the input. The different arrangement of the paranthesis
appears to have made the difference.

"Mike H" wrote:

Hi,

Try this and note the different arrangement of the parenthesis

=SUMPRODUCT(('East 2010'!$G$3:$G$19="THR")*('East
2010'!$F$3:$F$19=DATE(2010,4,1))*('East 2010'!$F$3:$F$19<=DATE(2010,6,30)))
--
Mike

When competing hypotheses are otherwise equal, adopt the hypothesis that
introduces the fewest assumptions while still sufficiently answering the
question.


"Basenji" wrote:

Using Excel 2003 there are dates in F3:F19 and procedures, such as THR, in
G3:G19 on the sheet East 2010. On a second sheet in the workbook I need to
count the number of 7 different procedures for each quarter. Based on
feedback found in other questions I have come up with this formula:
=SUMPRODUCT((('East 2010'!$G$3:$G$19="THR")*'East
2010'!$F$3:$F$19=DATE(2010,4,1)*'East 2010'!$F$3:$F$19<=DATE(2010,6,30))). I
have tried different variations but am missing something as it is not
function properly.