Announcing new REST APIs in beta for rooms, time zones, and languages

Today we're pleased to announce some new APIs that are available on the beta endpoint for the Outlook REST API. These are currently only available via the Outlook endpoint (https://outlook.office.com/api/beta) and not the Microsoft Graph API endpoint. Try these new APIs out today, either in your code, or on the Outlook OAuth Sandbox. Leave feedback…


Upcoming change to Event schema in the Outlook REST API beta endpoint

We wanted to give you a heads-up on upcoming changes to how locations are exposed for events in the Outlook REST API. Outlook recently introduced the option to use multiple locations to schedule meetings and appointments. The feature is designed for meetings scheduled for persons and teams spanning different regions, for example, some people attending…


Throttling coming to Outlook API and Microsoft Graph

Update 5/10/17: Based on feedback from our customers that the posted limit is too low for their apps, this is not currently being enforced. We’re working with them and gathering data to understand what would work for their apps. We’ll provide an update once we have more information. On April 21, we will be enabling…


Update to Filtering and Sorting in the REST APIs

We recently deployed a breaking change to the Microsoft Graph V1.0 and the Outlook V1.0 & 2.0 endpoints to address a major issue with filtering. For full details, see https://dev.office.com/blogs/update-to-filtering-and-sorting-rest-api.


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…


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.