hi
the sumif formual is looking for what is between the double quotes literally
and the cell does not contain A3. write your formula criteria more like
this....
=sumif(search range,"<"&A3, sum range)
the ampersand concatinates the less than sign and the value in A3.

Regards
FSt1

"Louis Zaffino" wrote:

In the criteria section of the Sumif formula if I reference a date (ex.
"<A3") I do not get the correct answer but if I in put the serial number of
that date (ex."<39251") I do get the correct response. Why is this?