<div>
Try:<br />
<br />
=SUMIFS(A:A,M:M,&quot;&lt;&gt;&quot;,N:N,&quot;<wbr />&quot;)
</div>


<div>
<pre><code id="code-20-39595304-1">=SUMIFS(A:A,M:M,&quot;&gt;1&quot;,N:N,&quot;&quot;)</code></pre>
<br />
This will only SUM the numbers in Column A if the same row in Column M has a value and Column N does not have a value.
</div>


=SUMIFS(A:A,M:M,">1",N:N,"")


This will only SUM the numbers in Column A if the same row in Column M has a value and Column N does not have a value.

<div>
@NB_VC,<br />
Your formula reading text, not dates. &nbsp;Can it be modified for numbers?
</div>


@NB_VC,
Your formula reading text, not dates.  Can it be modified for numbers?

<div>
It doesn't seem to work for me. &nbsp;Using your formula, I am returned a higher value, which is why I suggested &quot;&gt;1&quot;. &nbsp;It also returns &quot;0&quot; if I put the formula in here.<br />
<br />
See attached, I may be missing something.<br />
<a href="https://filedb.experts-exchange.com/incoming/2013/10_w43/684328/SUMIFS.xlsx" target="_blank" class="file-inline" title="SUMIFS (9 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>SUMIFS.xlsx</a>
</div>


It doesn't seem to work for me.  Using your formula, I am returned a higher value, which is why I suggested ">1".  It also returns "0" if I put the formula in here.

See attached, I may be missing something.
SUMIFS.xlsx [https://filedb.experts-exchange.com/incoming/2013/10_w43/684328/SUMIFS.xlsx]

SUMIFS.xlsx

<div>
You have the formula in column A causing a circular reference because you are using whole column ranges... <br />
<br />
try:<br />
<br />
=SUMIFS(A1:A25,B1:B25,&quot;&lt;&gt;&quot;<wbr />,C1:C25,&quot;&quot;<wbr />)
</div>


You have the formula in column A causing a circular reference because you are using whole column ranges...

try:

=SUMIFS(A1:A25,B1:B25,"<>",C1:C25,"")

<div>
I think I caught it. &nbsp;I had my sums in Column A... (facepalm). &nbsp;Rookie mistake, my fault. &nbsp;Thanks for the clarification.
</div>


I think I caught it.  I had my sums in Column A... (facepalm).  Rookie mistake, my fault.  Thanks for the clarification.

<div>
<div class="content wysiwyg-content">
Is there a way to sum column A if column M has a date but column N does not??<br />
<br />
Basicly I am trying to show a sum if a lesson is begun but not completed.<br />
<br />
So Column M would have a lesson begin date and column N would have a lesson completed date.<br />
<br />
Thanks!!
</div>
</div>


Is there a way to sum column A if column M has a date but column N does not??

Basicly I am trying to show a sum if a lesson is begun but not completed.

So Column M would have a lesson begin date and column N would have a lesson completed date.

Thanks!!

Excel 2013 SUMIFS

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