Actionable messages developer documentation now available

In September, we announced Actionable message for connectors and email in preview. We are excited to announce the preview is now available to all Office 365 users via Outlook on the web, including for your Inbox. Some of the top connectors such as Asana, Bitbucket, Github, Trello, Twitter, Wunderlist and Zendesk are already enabled with…


Introducing Request Validator to beta endpoint

I wanted to update you all on a breaking change that we are making to the Outlook REST API Beta endpoints.  This change is the introduction of a Request Validator which is going to be deployed worldwide over the next few weeks.  Here are the details of this change. What is the Request Validator? The…


Announcing Exchange ActiveSync version 16.1

We are excited to announce enhancements to Exchange ActiveSync (EAS) in Office 365 and a future cumulative update to Exchange Server 2016 that will soon be available to Exchange ActiveSync clients. We are introducing version 16.1 of the EAS protocol, which contains three new major capabilities: Improved Keyword Search – Get quicker, more relevant results…

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Upcoming changes to Contacts and People APIs

This is an update about breaking changes that we are making that only impact Contacts and People APIs on the Outlook REST API Beta endpoints. It is a schema change where a few properties are being removed and corresponding collections are being added. The changes are outlined below and will roll-out to PROD over the…


Upcoming changes to the FindMeetingTimes (Preview) API

I wanted to give you all a heads up on some changes that are coming to the FindMeetingTimes (Preview) API which is available in preview. We are making these changes to further improve the API based on feedback, and these changes will be widely deployed over the next few weeks. The updated API will continue…


Transition your app from Live APIs to Outlook REST APIs

As you might know, we have a new v2 auth model that supports sign-on and access to Microsoft Graph and Outlook APIs for consumer, work, and school accounts. In case you missed it, here is the v2 auth model GA announcement and here is the link to the new v2 auth model protocol specs. Together…


Tasks, OOF settings, and more improvements to the REST APIs

We wanted to update you on multiple additions and improvements we have made to our APIs since launching Outlook API V2.0 and Microsoft Graph V1.0 in November 2015. The features listed below are available in Outlook API preview endpoint https://outlook.office.com/api/beta.