☆ It would be nice to add a setting that allows you to specify a transfer-prohibited address or domain.
☆ It is hoped that Power Automate can take over the transport rules of Exchange Online.

Sometimes when more than one workbook is opened, then a:
GeneralException: There was an internal error while processing the request
is thrown during various office-js operations.

See https://github.com/OfficeDev/office-js/issues/771 for details.

I know there's a workaround:
https://docs.microsoft.com/en-us/office/troubleshoot/excel/force-excel-to-open-new-instance
but it's impossible to force clients to use it.

Allow an option to have all calendar invites to be a Teams meeting by default instead of needing to manually set it as a Teams meeting each time.

https://docs.microsoft.com/en-us/graph/api/user-list?view=graph-rest-1.0&tabs=http

"By default, only a limited set of properties are returned (businessPhones, displayName, givenName, id, jobTitle, mail, mobilePhone, officeLocation, preferredLanguage, surname, and userPrincipalName)."

Adicionar o Departamento nas informações do usuário.

At the moment addins run in EdgeHTML

Recently Chromium-based Edge has been released which is much faster than EdgeHTML

Add-ins should run in new, Chromium-based Edge.

Will it be "just done" at the next Windows update?

Similar to previous suggestion:
https://officespdev.uservoice.com/forums/224641-feature-requests-and-feedback/suggestions/31155925-office-add-ins-should-run-in-edge-not-ie11

Microsoft have decided to make the E5 Developer Subscription available to only new developer subscriptions. Can this be made available to existing developers?

https://developer.microsoft.com/en-us/sharepoint/blogs/new-microsoft-365-e5-subscription-with-ems-now-available-for-developers/

I am attempting to use the Document.getFileAsync method in Office Excel 2016 on Windows. Executing the method fails with an "Permission Denied" error.

Error code: 7000
Error name: "Permission Denied"
Error message: "You don't have sufficient permissions for this action."

This functionality is critical to our Add-in and we have many customers that use this 2016 volume licensed version of Office. They are not able to upgrade since the version is locked down at 16.0.4266.1001.

Support Add-in development in Blazor

Currently displayMessageForm method is opening the message pointed by itemId in a new window.

It will be great if we could pass an option to the method Office.context.mailbox.displayMessageForm() that allows to replace the current visualized message with the new message indicated in itemId.

The use case that I want to enable here is to programmatically navigate with add-in javascript to arbitrary messages knowing their itemIds.

Current version of API lacks this functionality

Office now supports high-DPI and per-monitor DPI awareness, but custom task-panes do not. Add-in custom task panes are always hosted in a system aware host window and there is no way to indicate our add-in is high-DPI and multi-monitor DPI aware. Our customers therefore only see a low resolution user interface in the task panes. The Excel built-in task panes support high-DPI so this shouldn't be too difficult, maybe a registry setting indicating the add-in supports high-DPI or even an extra parameter to ICTPFactory.CreateCTP indicating support.

In desktop Outlook app you can set dark/light theme or follow system theme and you can read that value from Office.context.officeTheme so add-in color scheme would match the app.
You can set dark theme in Outlook web app but the issue is that Office.context.officeTheme returns undefined.

The requirement for me is using webRTC in office add-in, so we need to access to microphone, however there is no way to grant the access to microphone in desktop app(it works well on web side). so we want add-in can support this feature.

Adding Office.EventType.ItemChanging event will greatly help add-in developers to write robust code to handle changing mail items.

With a ItemChanging event that fires before Office.context.mailbox.item changes to the new context, we can write cleaner transition state logic, avoiding operations meant for previous item from bleeding into the next item.

The Single Sign-on API is currently supported in office.js preview.

There should be option to disable or hide Addin icon and title in taskpane/sidepane header?

Or there should be an option to customize header of sidepane/taskpane like setting background image or custom font in header?

Need to test and work with Microsoft Virtual Desktop and use autopilot scenarios for Enterprise testing. The Pro to Enterprise step up integrated into Azure AD is needed

I would love to be able to create tasks from my Outlook web add in using Office.js based on information retrieved from our servers.
Being able to launch a form for the users, something like Office.context.mailbox.displayNewTaskForm, like how you can use displayNewMessageForm, or displayNewAppointmentForm would be useful.