Please Note: This article is written for users of the following Microsoft Excel versions: 2007 and 2010. If you are using an earlier version (Excel 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Excel, click here: Making VLOOKUP Trigger a Macro.

Making VLOOKUP Trigger a Macro

by Allen Wyatt
(last updated April 17, 2019)

3

Mike uses VLOOKUP regularly in his worksheets, but wonders if there is a way to make the function run a macro if it fails to return a value.

There are a couple of ways you could approach this problem. First, you could use a conditional formula to determine whether VLOOKUP will return a value or an error. If it will return an error, then you can have the formula run a user-defined function (MyUDF), as shown here:

=IF(ISERROR(VLOOKUP(B2,CODES,1,FALSE)),MyUDF(),
VLOOKUP(B2,CODES,1,FALSE))

All you need to do is make sure that you put your actual VLOOKUP code in the formula (twice) and replace MyUDF with the name of the user-defined function you want to trigger.

Another approach is to set up an event handler for the Calculate event. This can be rather simple, as in the following:

Private Sub Worksheet_Calculate()
   If IsError(Range("A1")) Then Call Macro1
End Sub

This example assumes that the VLOOKUP formula is in cell A1 and that you want to run a macro called Macro1 if the VLOOKUP returns an error. Your macro could then do whatever you need it to do. Remember, as well, that the Calculate event handler should be placed in the ThisWorksheet object.

You could also make the Calculate event handler a bit more robust, as shown here:

Private Sub Worksheet_Calculate()
    On Error GoTo myMac
    Worksheets(1).Select
    If Range("A1").Value Then
        Exit Sub
    End If
myMac:
    Macro1   'macro to run if VLOOKUP fails
End Sub

Note:

If you would like to know how to use the macros described on this page (or on any other page on the ExcelTips sites), I've prepared a special page that includes helpful information. Click here to open that special page in a new browser tab.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (10107) applies to Microsoft Excel 2007 and 2010. You can find a version of this tip for the older menu interface of Excel here: Making VLOOKUP Trigger a Macro.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He is president of Sharon Parq Associates, a computer and publishing services company. ...

MORE FROM ALLEN

Using Graphics to Represent Data Series

You can spice up your bar chart by using a graphic, of your choosing, to construct the bars. This tip shows how easy it ...

Discover More

Hyperlinks No Longer Work in a Workbook

Hyperlinks can be a great timesaver and very convenient. Unless, of course, if they don't work as you expect. This tip ...

Discover More

Changing What Follows a Footnote Number

Word makes it easy to insert footnotes in your document. It doesn't, however, make it easy to change the format in which ...

Discover More

Comprehensive VBA Guide Visual Basic for Applications (VBA) is the language used for writing macros in all Office programs. This complete guide shows both professionals and novices how to master VBA in order to customize the entire Office suite for their needs. Check out Mastering VBA for Office 2010 today!

More ExcelTips (ribbon)

Using the CONCATENATE Worksheet Function

The process of combining string (text) values to make a new string is called concatenation. Excel provides the ...

Discover More

Indirect References to a DSUM Parameter

Indirect references can be very helpful in formulas, but getting your head around how they work can sometimes be ...

Discover More

Using GEOMEAN with a Large List

When performing a statistical analysis on a large dataset, you may want to use GEOMEAN to figure out the geometric mean ...

Discover More
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

View most recent newsletter.

(Your e-mail address is not shared with anyone, ever.)

Comments

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is one more than 6?

2015-06-15 10:40:18

Oscar

It would be interesting to see a specific example of a macro that needs to be triggered when vlookup fails.

2015-06-15 08:30:09

balthamossa2b

I strongly recommend not going down the Worksheet event route for this one. If you aren't very careful with your macro chances are you will fall into an infinite loop.

Also if you want to use a macro, might as well use one all the way. Instead of using VLOOKUP, use Range.Find directly.

2013-05-06 08:06:38

Bryan

If your macro returns a value, use:

=IFERROR(VLOOKUP(B2,CODES,1,FALSE)),MyUDF())

This Site

Got a version of Excel that uses the ribbon interface (Excel 2007 or later)? This site is for you! If you use an earlier version of Excel, visit our ExcelTips site focusing on the menu interface.

Newest Tips
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.

Links and Sharing
OUR COMPANY
OUR PRODUCTS
OUR AUTHORS
OUR SITES
 

Copyright © 2019 Sharon Parq Associates, Inc.