Try Sumif.

=SUMFI(range,criteria,sum range)

=SUMIF("Date Range", "Date Criteria","Unit")

=SUMIF("ITEM CODES RANGE", "Particular Item Code","Unit")

Have a look in sumif examples in help menu.

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(MS-Exl-Learner)
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"Kewlstix" wrote:

Howdy. I have been trying to figure out how to do the following;
Example Columns: Date, ItemCode, Desc, Units.
On another sheet, I have Item Code, Date, Units, followed by dates in row 1.
I need to sum all the units that match Item Code, Date. I just don't know
how to do it. I've tried to use and(), but have not received the desired
results.

Can you help me? I really want to be able to do this.