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reitzen: Awesome. &nbsp;I have not yet used the ISERROR function and I now see how simple it is.<br />
<br />
Barry, thanks for describing yet another way of addressing the issue -- that may be good for a future application where my formula is long and complicated.<br />
<br />
I've split the points - hope you find this fair.<br />
<br />
Thanks, again for the prompt response. &nbsp;You make my job easier knowing you experts are there to help.<br />
Gary
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reitzen: Awesome.  I have not yet used the ISERROR function and I now see how simple it is.

Barry, thanks for describing yet another way of addressing the issue -- that may be good for a future application where my formula is long and complicated.

I've split the points - hope you find this fair.

Thanks, again for the prompt response.  You make my job easier knowing you experts are there to help.
Gary

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Ok, This formula did the job nicely (see attached).<br />
[=COUNTIF(INDIRECT(&quot;'&quot;&amp;E$4<wbr />&amp;&quot;'!$D$5:$<wbr />AC$100&quot;),$<wbr />B6)<br />
<br />
I now want to modify this formula to return a BLANK (or &quot;&quot;) when referenced wksht is missing, instead of #REF!.<br />
<br />
Any suggestions?<br />
<br />
Gary<br />
<a href="https://filedb.experts-exchange.com/incoming/2011/09_w37/497782/LCS-by-Activity-Code-08-2011-EE-.xls" target="_blank" class="file-inline" title="example (72 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>LCS-by-Activity-Code-08-2011-EE-.xls</a>
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LCS-by-Activity-Code-08-2011-EE-.xls

Ok, This formula did the job nicely (see attached).
[=COUNTIF(INDIRECT("'"&E$4&"'!$D$5:$AC$100"),$B6)

I now want to modify this formula to return a BLANK (or "") when referenced wksht is missing, instead of #REF!.

Any suggestions?

Gary

How do I modify my Count IF formula to return BLANK when referenced worksheet is missing?

Microsoft Excel topics include formulas, formatting, VBA macros and user-defined functions, and everything else related to the spreadsheet user interface, including error messages.