[Upcoming changes] Exchange Web Services API for Office 365

Exchange Web Services (EWS) was launched as a part of Microsoft Exchange 2007 as a SOAP based API that allows access to Exchange and Exchange Online data. Starting July 3, 2018, Exchange Web Services (EWS) will no longer receive feature updates. While the service will continue to receive security updates and certain non-security updates, product…

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Office 365 Developer – Get the Personal Contacts with Microsoft Graph API

As you aware Outlook contacts lets you store personal contacts’ data, and is part of the Outlook messaging hub in Office 365. Through Outlook, you can manage emails, schedule meetings, find information about users in an organization, initiate online conversations, share files, and collaborate in groups. So now with Microsoft Graph API you can get/pull…

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Graph Developer: Microsoft Graph API fails with error RESTAPINotEnabledForComponentSharedMailbox

One of my customer tried accessing the Graph/REST API call using Microsoft Graph API in their mailbox and they get error “RESTAPINotEnabledForComponentSharedMailbox”. It worked for their couple of other mailboxes, but failed for this given mailbox. Their error stack (detailed one) looked like the following: {     “error”:     {         “code”: “RESTAPINotEnabledForComponentSharedMailbox”,         “message”:…

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Gotchas – Microsoft Graph/Outlook REST API throttling, best practices

In recent times, I was working with this customer where they make Graph API calls, Say, GET https://graph.microsoft.com/v1.0/users/YYY@XXX.onmicrosoft.com/mailFolders/inbox/messages?$skip=0&$top=30&$select=bodypreview,categories,conversationid,from,hasattachments,id,isdraft,isread,lastmodifieddatetime,parentfolderid,receiveddatetime,replyto,sender,sentdatetime,subject,torecipients and few other GET (read operations of mail folders/single item handles specifically) and few POST/PATCH calls. They noticed, once the throttling threshold is exceeded, Microsoft Graph limits any further requests from that client for a period of…


Azure/Office 365 Graph API developer: RefreshToken, AccessToken, IdentityToken

These are 3 common terms (Refresh Token, Access Token, Identity Token) in Azure/Office 365 Graph API Cloud developer world and we get tons of queries on this. So let me try to explain them in simple terms … Access Token:- The access token is attached to every REST API request in the authorization header. -…


Programmatically created email with attachment shows fields garbled

In recent times I was working with this developer customer. They created a custom application using Outlook Object Model (OOM) API – their app tries to create a new message programmatically with attachments. They notice the newly created items fields (such as the CC, BCC and TO) overlaps or garbled. Based on my tests with…


Office.js: MakeEWSRequestAsync throws “The request exceeds the 1 MB size limit. Please modify your EWS request”

One of my customer created Outlook Web add-in (Office.js) and when he calls mailbox.makeEwsRequestAsync method. But they got the following error “The request exceeds the 1 MB size limit. Please modify your EWS request”. At the app level, the developer is making the call from web add-in to create a mail item in drafts folder…


Developer: Office 365 APIs and Mobile App Development

Office 365 is built on a mobile-first strategy. Office runs on almost any device these days, so why not your own custom applications? In this session, find out how you can build powerful Office 365 connected applications for any mobile platform. Hope this helps.


Azure Developer – Now Service Fabric is going open source

Yes, that’s right – Now Service Fabric is going open Source and it was announced by Service Fabric team. Please refer our earlier blogpost regarding the same.  Service Fabric is going open source under the MIT license and over the coming months we will be transitioning to a completely open development process on GitHub. Also…


Office Developer: Difference between Office Web addin vs COM/VSTO addin

COM or VSTO add-ins are earlier Office integration solutions that run only on Office for Windows. The major difference what you see is that COM addins will be running in the user device or in the Office Client. The new Office Add-ins don’t involve code that runs on the user’s device or in the Office…


Office 365 Developer: Build add-ins for Microsoft Outlook

In this video you will see Petra provides a brief overview of the Outlook add-in platform and its capabilities. The add-in platform helps developers create native Outlook solutions, so users can get more done within Outlook. In short you can,- Learn what makes up an add-in- Get a high-level look at how to build one-…


Exchange Server –March 2018 quarterly updates released

The March quarterly release updates for Exchange Server are now available on the download center. We documented the detailed info @ EHLO blog – https://blogs.technet.microsoft.com/exchange/2018/03/20/released-march-2018-quarterly-exchange-updates/ Hope this helps.