Error with Dynamics 365 app for Outlook only in Desktop client but works in OWA - dynamics-crm

I have installed & configured the Dynamics 365 app for Outlook with my v9 Org. I have Office 2016 Professional Plus with latest updates.
It's totally working fine in OWA but not even started working on my Laptop Outlook. This is even listed as a known issue, but it says "frequently", for me always.
I have troubleshooted with the help of below links but no luck:
Blog & Community
Anybody know some extra troubleshooting steps to solve this?

Our environment is having some limitations like 3rd party encryption called Vaultive & then Oauth was not enabled which is a prerequisite for App for Outlook it seems in desktop client (for OWA it's not required just federation is fine).
We are able to sort out these things after MS support ticket & deep internal analysis. Now its working.

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ADFS SSO not working in Office Add-in for Outlook 365. Any help would be much appreciated

Our company is unable to log into a particular Office Add-in using ADFS SSO. The SSO does not appear to “hook” correctly and instead redirects to a blank page. This issue only occurs in Outlook 365 for Windows. We tested this on both managed and unmanaged machines as well as on and off prem. Outlook 365 for Mac and Outlook 2019 Professional Plus for Windows both work fine.
We examined our firewall and ADFS logs but nothing appears to be blocked. We also checked Office 365 admin center to see if there were security settings preventing Office Add-ins from working correctly but did not find any.
We troubleshooted with the developers of the Add-In but they have not been able to identify the cause of this issue. At this point we are scratching our heads. Is this a programming issue or something else?
Thanks in advance!

Outlook add-in not available for IMAP on windows

We have an add-in that works fine on Outlook for mac but not on windows for IMAP (Gmail) accounts.
Is the setup different to how the IMAP is configured on MAC and Windows?
Mac Version - 16.41 (20091302)
Win Version - 16.0.13127.20402
This is an issue because a lot of our users are unable to use the add-in when they have multiple accounts in Outlook on windows (of which most are IMAP - Gmail)
I would have thought it would be other way around where Add-ins would be available on Windows and not on Mac since a lot other things are not supported on Mac within outlook.
Are there settings that can be changed to make them available on windows or of anyone knows about this being available in the future?
----------------- UPDATE --------------------
Mac Version - 16.42 (20101102)
So, this morning 19th Oct, 2020. I got an Outlook Update for mac and as per the screenshot below, you can clearly see that I am using a Google Account (IMAP) and the add-ins are availanle.
Outlook Web Add-Ins are only supported on Outlook accounts connected to an Exchange server. Further documentation here : https://learn.microsoft.com/en-us/office/dev/add-ins/outlook/add-in-requirements

Outlook addin not working on Office 2013 or Office 2016

I've submitted my outlook add-in 6 times now and every time the certification failed for a different reason. The last rejection reason I got was that my add-in didn't work on Office 2013 and Office 2016 (which they also refer to as O365 Perpetual).
I develop on a Mac and I have no idea how to go about debugging why my add-in is not working on those older Offices. Can't I just drop support for older Office suites? How could I test these environments?
I'm pretty close to quitting and just not publishing my outlook addin. I have never experienced a worse app review process.
If you want to be published on the Office Store, you need to support all the platforms for the minimum Outlook API Requirement Set in your manifest.
If you do not need to support Outlook 2013 or Outlook 2016, you can set your minimum API requirement set to 1.5, which will drop support for those versions (1.4 was the last version supported by those versions of Outlook). When you submit to the Office Store, please make a note that your minimum API set means that the add-in will not run in those Office clients.

Is centralized deployment supported for outlook web-addins

Can we deploy outlook web-addins for O365 accounts using centralized deployment as described here ?
Three/Four months before, if I tried to install outlook add-in using this method, installation itself would fail. Now, I don't get any errors while installing, but the add-in does not appear in Outlook clients (Outlook 2016 in Windows and OWA in browsers).
Are centralized deployments supported for Outlook add-ins now? Also, are there any client side requirements? I found some related information here. But I am doubtful if it is up-to date.
Thanks for the query bala. Centralized deployment for Outlook add-ins is not supported as of now and will come very soon. There are no specific client requirements other than minimum requirements for add-ins.

Side loading an Outlook javascript add-in

I am having a horrible time getting started at creating an add-in for Outlook. I want to use the new html/javascript/manifest approach. I have been able to create a manifest and application which works great with outlook.live.com. Where I am completely getting stuck is with desktop Outlook. How do I install/debug my add-in with desktop Outlook?
I cannot find anything in the UI which will let me add this style of add-in. Additionally the Microsoft documentation did not make things any clearer. Their docs seem to hint using this type of add-in is only possible if you are connecting to an Exchange server.
Any help would be greatly appreciated.
Yes the add-in will load on Outlook desktop only if your mailbox is Exchange. I am not sure the add-ins work with a personal Microsoft account (e.g hotmail.com, outlook.com) and Office desktop. Keep in mind that the support of mail add-ins for personal account is relatively new (officially announced in march 2016).
To develop your add-in I suggest you to use a organizational account (i.e. Office365 account). Support for organizational account has been released in 2013 and is a much more mature solution for you to get started. You can have a free dev account at dev.office.com.
Edit: October 2016 personal account are supported now by "Personal mailbox accounts" aka outlook.com accounts
Let us keep in mind that a mail add-in is not installed on a mail client (desktop, OWA) but on the mail account. When you "install" an add-in you only set a xml file on your mailbox that basically says "there is a web add-in out there called X and that is served at this url...". Then, if you install add-in X on your mailbox smaclell#mytestcompany.onmicrosoft.com, this add-in will load the add-in web iframes whether you are consulting your mailbox with Outlook Web Access (OWA) or Outlook Desktop.
To install the add-in for one user mailaccount, you have to use the Outlook Web Access. See this blog post. Note also that you can install the add-in for the whole organisation (Admin > Exchange Admin > Add-ins). Finally, Visual Studio is also able to push the manifest to your office 365 mailbox. To have this you need Office Development Tools.
For debugging in Outlook Desktop, I know two approaches.
Use the Office Developement Tools with visual studio
and select your sample add-in project as 'Starting project' and in properties select 'Office Desktop'.
Plain web development.
Personally, I do not use really much the Office Development Tools. I install manually my add-in with "https://localhost:XXXX" for url and I start the web project on IIS express to do the debugging. For stepping into the source code, I use the debugger of my browser (Chrome, Edge, IE etc.) when browsing in OWA. When I need to step into source code specifically on Desktop (For windows or for Mac) I use Vorlon.js see also this blog post.
My advice is also to test/debug frequently with IE 11 (still available in Win10!) and OWA. Indeed, the browser used internally by Office Desktop for the add-ins is IE.

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