【 Office365 アップデート 】『Outlook REST v1.0 API』が 2019年11 月に廃止へ

Office365 に関する Major Change Update 情報(2019/4/9付)をご案内いたします。

2019年11月より、『 Outlook REST v1.0 API 』が廃止されるようです。廃止後、同 API は利用できなくなるので注意が必要です。なお、 v1.0 の廃止後、『 Microsoft Graph 』と『 Outlook REST v2.0 API 』が代替となるとのことです。


※ Nortification の解釈に誤りがございましたら申し訳ございません。


We will be retiring Outlook REST v1.0 API’s from Office 365, beginning November 2019 as communicated previously in MC124063 and MC143425. Over the last few years, we have been investing in services that help developers access information in Office 365 in a simple and intuitive way. As we make progress in this journey, some technologies no longer provide the best way to interact with Office 365 data. The API’s we are removing, have been superseded by the Microsoft Graph and Outlook REST v2.0 API’s.

You are receiving this message because our reporting indicates one or more users in your organization are using applications built using Outlook REST API v1.0.

[How does this affect me?]

Beginning November 2019, we will be retiring Outlook REST API v1.0. Your applications, using these API’s, will cease to function correctly when this change is implemented. Our reporting indicates you are using one or more applications that is connecting to Office 365 using these API’s and may be affected by this change.

Application Id’s :

[What do I need to do to prepare for this change?]

Please review applications with the above application id’s in the Enterprise apps section of the Azure portal. If you have written your own code using these API’s, you will need to update your code to use Microsoft Graph or Outlook REST v2.0 instead of Outlook REST v1.0. If you are using a 3rd party application, which uses these API’s, you will need to reach out to the 3rd party who provided this application.