Developer: Office Add-ins community call @ April 10, 2019

The Office Add-ins community call is our monthly event for developers to connect in real-time with the folks who are building the Office JavaScript APIs. We’ll share updates about new Office JavaScript APIs, provide tips about useful tools, samples, and resources for developing Office Add-ins, and feature a technical deep dive on a specific topic….

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Deep dive # 2: How to configure Exchange on-premise Server hybrid integration with Office 365/Azure Infrastructure and test REST API calls?

So this post is dedicated for Exchange/Office 365/Azure administrators, as they came back after checking the deep dive # 1 blog with few queries. /api virtual Directory: CU3 introduces a new virtual directory to support the REST API, the /api virtual directory. So the API virtual directory is available in Exchange 2016 CU3 or newer…

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Deep dive # 1: How to configure Exchange on-premise Server hybrid integration with Office 365/Azure Infrastructure and test REST API calls?

This is one of the regular discussion that comes across at my desk, how we can configure Hybrid Exchange on-premise server integration with Office 365/Exchange Online, so that users can make use of REST API. So I thought let me stitch all of them together which can be handy for both the Exchange administrators and…

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Microsoft Graph API’s Beta version, developer guidance, support

Microsoft Graph API’s beta version, You need to be aware that beta version contains features that are currently in preview. You’re invited to try these APIs. Beta version is exposed under https://graph.microsoft.com/beta How to find if the feature is in beta or not, When you open the Graph API documentation, you will see the following…

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Graph API Developer–Programmatically get the Outlook categories defined for the user using Graph API

Well, we use Outlook/Office 365 a lot and sure most of them uses Categories. Traditionally, you might have used MAPI/Outlook Object Model/EWS API to retrieve these categories. This time, lets we use Microsoft Graph API to programmatically get the Outlook categories that have been defined for the user. First i make the Request: GET https://graph.microsoft.com/v1.0/me/outlook/masterCategories…

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How to connect to Exchange Online PowerShell using multi-factor authentication??

If you want to use multi-factor authentication (MFA) to connect to Exchange Online PowerShell, you can’t use the instructions at Connect to Exchange Online PowerShell to use remote PowerShell to connect to Exchange Online. First, MFA requires you to install the Exchange Online Remote PowerShell Module Then you need to use the Connect-EXOPSSession cmdlet to…

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Office.js debug: Office add-in throws “Sorry, we couldn’t load the app because your browser version is not supported”

One of the ISV pointed out that they see the following error with Office Add-ins that they develop. It throws error “Sorry, we couldn’t load the app because your browser version is not supported. Click here for a list of supported browser versions.” During the investigation we noticed the end user’s browser (Internet Explorer) is…


Office.js web add-in throws HTTP 401 Unauthorized

One of my dev customer, created Outlook Web add-in (using Office.js/JavaScript) and tried calling EWS call (mailbox.makeEWSRequestAsync method). It throws HTTP error 401 for mailbox.makeEWSRequsetAsync() method. They noticed the error or behaviour when they tested with Outlook on the Web and Outlook Web Access for devices. The API call throws, the following HTTP error: “The…


Debug: Graph API throws HTTP 403 with $filter for some users

In recent times, i worked with one of the ISV developer who reported that for some users when they use $filter with Graph API calls throws HTTP 403 – Forbidden. The same call works fine with $filter for most of the users. We chased and found it happens for some users (and not for all…


App developer guidance – Microsoft Graph API

Well, you might be using Microsoft Graph or Office 365 REST API or Azure AD Graph API’s, where you may see some functionality is not yet available in Microsoft Graph when compared to Office 365 REST APIs or Azure AD Graph APIs. In that case, I would suggest the following guidance: For Office 365, if…


Graph API : Subscription lifetime changes for Outlook resources

If your application uses user tokens to create subscriptions to Outlook resources, then you need to update your apps as needed to handle this scenario. This only applies to applications that use user tokens to create subscriptions. Applications that use app tokens to create subscriptions are not affected by this change. Existing applications do not…


Office 365 Reporting Web Service API developer queries related to response limit, permissions, reports!!

As you aware that the Office 365 Reporting web service enables developers to integrate information on email and spam, antivirus activity, compliance status, and Lync Online activities into their custom service reporting applications and web portals. These are few frequent queries that I come across Office 365 Reporting Web Service API developers – so I…