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.

It would be great if the VBA IDE would highlight...

(a) The start and of Blocks such as If/End If. So if you highlighted the "If" the matching "End If" would also be highlighted. This would be great for both coding but also auditing inherited code.

(b) Highlight incomplete Blocks: so if you start "If" it's red until such time the closing "End If" is added

The save() methods that exists in the API's aren't aren't really very useful. This extends the typical Ctrl+S functionality. It would be great to implement a feature in which it would be possible for us to apply the save() method with a parameter: 'Url/path'. Currently it isn't possible for us to save a document to a specific location nor is it possible for us to load a document from a specific location.

Functions in topic:
- save(string url): apply url/path to where you wish to save the document.
- load(string url): apply url/path to a document you wish to load.

The only way to identify if a user is actually a shared mailbox is using Powershell. You should also be able to identify shared mailboxes over other APIs such as graph. So that shared mailboxes can be managed from dynamic applications.

I want to add field codes using word JavaScript API. I checked the API documentation but I found nothing regarding this. It would be great, if there a possible way to do this through the API.

It would be useful to allow Outlook Add-ins to have context menu extension points to allow for more granular action controls (e.g. Right-clicking THIS specific email allows me to act on it with THIS add-in)

It seems that the context menu isn't off limit to all Office programs, such as Word or Excel, but there is not any support for Outlook.

https://dev.office.com/reference/add-ins/manifest/extensionpoint

You can try to run this code and check the Undo/Redo stack:
Excel.run(function (ctx) {
return ctx.sync();
});

Access can link to SQL Server tables but it would great if it had the same intellisense that SQL Server has for writing SQL Statements directly into the VBA IDE. So if you referred to a linked (or local) table in your VBA code then typed the period, intellisense would show the available fields.

Add support for the Add-In to create a new slide in the presentation. A possible use case would be to support the ability for an add-in to insert template marketing slides. A sales person needs to create a new presentation. The add-in pulls the latest marketing slide from a repository and adds them to the presentation ensuring that the sales person is always using the latest slides

VBA COM Object model supports Application.CompareDocuments to compare and merge word documents. Office.js lacks this capability. Please support this through Office.js

Support Add-in development in Blazor

• Looks like bookmark support is being introduced in Word API 1.4
• This is currently available in Insider Preview builds and beta version of Office.js.

Please let us know when will this be available in production

I'd like to see the ability to register ribbon items (tabs and their children) dynamically on the client-side via my app or some tenant scoped javascript that I can register (needs to work with SharePoint Online and should not block submittal to the store). Right now the only way to register a ribbon item of any sort is to do so during the app installation which doesn’t allow us to extend the ribbon over time (either with our own service adding items or by allowing the user to add their own items via an app or whatever).

In a workflow scenario (not sharepoint workflow, something custom) where we want to have a button in a Word Add-In taskpane to close the Word Online window after saving the file. In this button we initiate a next workflow step by saving the document, initiate the next step by e.g. setting a flag in sharepoint and closing the document editing session of the user.

This could either be an office general api or a word specific api (this is where we need it the most).

The API makes it very very difficult to wrap content in the underlying OOXML with additional OOXML.

SUGGESTION: It would be great if there were a range.insertComment, range.insertBookmark that worked exactly like range.insertContentControl does! Or please give us a method to get the current OOXML fragment represented by a range. I'm trying to insert bookmarks and I've seen others trying to insert comments, around the selected text. The getOoxml() methods are great if you're writing copy/paste functionality, but that doesn't help you if you're trying to manipulate/wrap the fragment.

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.

The new Mail Apps make adding functionality to OWA very easy, however they lack some of the power of a full-on Outlook addin. I suspect that a common use case will be to create a full-powered addin, and a "lite" mail app that handles what it can for OWA. At present, this doesn't work because the mail app shows up in both. Furthermore, it is possible to create functionality that only applies to one client or the other. It should be possible to specify an app as belonging to OWA or to Outlook.

See also http://social.msdn.microsoft.com/Forums/office/en-US/13c3413d-7f3f-4e7c-9b6d-c20e95b064e3/how-to-enable-mailapp-only-for-owaoutlookwebapp-not-for-outlook-client?forum=appsforoffice

There are no events for standard operations like Document close, Task Pane close, Paste, Hyperlink Click. Currently using SelectionChange event for Hyperlink click and Paste

Line numbering is essential for efficient error trapping. It would be great if the VBA had line numbering by default. To be effective, it should...

(a) automatically renumber when code is edited
(b) be able to be toggled between show/hide