A problem was detected with an app or add-in – Outlook
App and Add-in are two different things. Some examples of App for Outlook are Bing, Suggested Appointments, Action Items app, and so on. Add-in is similar, and they are available for Outlook you install on Windows 10 PC. Here are some common tips for the problem.
1] Restart Outlook
When I found this problem, all I did was close Outlook, and relaunch it. The error was gone, which means it was a temporary glitch, and a restart like always fixed the problem.
2] Manage apps for Outlook
If it happens again, click on the Disable Apps button. It will reveal the list of apps installed, and check which of the apps was disabled bt Outlook. At this point, you have the option to either remove it, keep it disabled, or check if there is an update. It is possible that a fix has to come from the developer to resolve it. Check the Outlook Home section on the ribbon, and then click on Get-Addins, and switch to My Add-ins. Microsoft says that this option, i.e., Apps from Office Store, is not available in every region but can be installed using a URL. You may have to contact your organization to get it resolved, finally.
3] Disable/Enable Add-ins
Outlook on Windows 10 has a dedicated section where you can find all the add-ins such as Grammarly, Anti-Virus, and others in place. When the problem is because of an Add-in, the button text will be replaced with View Disabled Add-ins. Click on File > Show and Disabled COM Add-ins. It will list down all the add-ins which have been disabled. You can choose to update if it is available or contact the developer. Add-ins are also disabled when they make Outlook slow, especially during the launch of the app. You should see the load time for such applications, and options to always enable it. The problem is not huge unless the add-in or app causing the issue is important to you.
