Today I was not able to test my new developed Office Add-In for Microsoft Excel 2016 on my system and simultaneously on an IIS server.
I noticed the following behavior:
- Runing my Office Add-In from Visual Studio – everything went smooth
- Runing the same Add-In loaded from my App Store – didn’t work
Office tried to load the Visual Studio ‘version’ from of my Office Add-In instead the App Store and server-based one.
SharePoint and Microsoft 365 