Office Addins : How to handle 'The license information for this add-in is missing or expired. so it may have limited functionality' warning?

Question

One of my office add-ins for Excel/Word/PowerPoint is published in the Microsoft AppSource, But the users are reporting that they are getting a warning message when they open the add-in after installing it.

Any ideas on how to fix this issue?

Answer 1

I would try this:

1. Remove all the addins & clear the cache:

• Remove all sideloaded add-ins from Excel, Word, and PowerPoint, delete the contents of the folder:

%LOCALAPPDATA%\Microsoft\Office\16.0\Wef\

If the following folder exists, delete its contents too:

%userprofile%\AppData\Local\Packages\Microsoft.Win32WebViewHost_cw5n1h2txyewy\AC#!123\INetCache\

2. Now run the application and load the addin
3. If issue persists, then try enable the runtime logging

Enable runtime logging - by [following the steps][1]!!

4. In addition, i would collect fiddler to see if they provide any clue. Also will try to sideload the manifest and see if it works. [1]: https://learn.microsoft.com/en-us/office/dev/add-ins/testing/runtime-logging