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A better approach is to download and install Microsoft Outlook for Android app.<br />
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<a href="https://play.google.com/store/apps/details?id=com.microsoft.office.outlook" rel="ugc">https://play.google.com/store/apps/details?id=com.microsoft.office.outlook</a>
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A better approach is to download and install Microsoft Outlook for Android app.

https://play.google.com/store/apps/details?id=com.microsoft.office.outlook [https://play.google.com/store/apps/details?id=com.microsoft.office.outlook]

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Calendar from Android phone using built-in Calendar app stops syncing to Office 365 mailbox and vice versa. Email syncs fine.<br />
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When I remove the account and re-add it, it works for a while but then fails to sync again.
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Calendar from Android phone using built-in Calendar app stops syncing to Office 365 mailbox and vice versa. Email syncs fine.

When I remove the account and re-add it, it works for a while but then fails to sync again.

Office 365 Exchange Calendar stops syncing on Android Phone.

Microsoft Office is an integrated suite of applications that includes Outlook, Word, Excel, Access, PowerPoint, Visio and InfoPath, along with a number of tools to assist in making the individual components work together. Coding within and between the projects is done in Visual Basic for Applications, known as VBA.

Microsoft Office

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.

Microsoft 365

Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Android's user interface is based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, variants of Android are also used on notebooks, game consoles, digital cameras, televisions, automobiles and other electronics. Applications are usually developed in Java programming language using the Android software development kit (SDK), but other development environments are also available, including Delphi, Ruby and Visual Studio (using C++).