The problem was easy to fix. When the point already has a label with a formula (maybe any label, I didn’t check), the AddDataLabel method doesn’t change the label.

The solution? Delete the label before adding the label that is called for in the program.

I’ve updated a corrected version of the utility.

Thanks for posting this new code. Viewing the code is always a great learning experience for me. If you have some time, I’d really love to see a post about how to make add-ins. I often share macros with other folks in my organization by pasting code in an email. It would be really nice to compile some of the better macros and distribute to the less technical colleagues as an add-in. Thanks!

Seems to be a version control issue one my end. The problem is that I have a number of versions of this utility, including one in my personal macro add-in and more than one standalone. I need to get the latest and greatest before I add this last functionality.

I noticed your add-in here doesn’t have the exact same functionality as your original tutorial code for Excel 2003.

With your new PTS Charts add-in, existing series labels are no longer reset to the SeriesName, which can be handy when one wants to substitute Label Last Point for a legend. This different behavior only arises if one has labeled a series or chart or last point with something other than the series name along the way. For instance, if someone wants to fix their space-consuming legends and cluttered data value labels, they have to turn off the point labels manually before the new Label Last Point can work its magic.