Outlook 2016 calendar not updating completely

Last Updated: March 22, 2019

ISSUE

Outlook 2016 connected to Office 365 does not show all content of a calendar folder opened in cached mode. The issue reproduces in every new Outlook profile created and the calendar cannot be synchronized in cached mode. The Synchronization Tab of the calendar folder shows not all items have been synchronized.

The synchronization logs in the Sync Issues folder show the following error:

Sync Error [80070057-30FFFFFF-0-560]

Sync Issues Folder Error 80070057-30FFFFFF-0-560
 

STATUS: SERVICE FIX

A service side fix has been deployed.  The fixed Version is 15.20.1687.000 or higher. 

After the first fix we found another variant of the same issue affecting attachments and that fix is being deployed.  The fixed version is 15.20.1772.000 or higher.

Note: The service version can be seen using the Outlook Connection Status dialog discussed in this article: Description of the Connection Status dialog in Outlook.

More Resources

Icon Experts (brain, gears)

Ask the experts

Connect with experts, discuss the latest Outlook news and best practices, and read our blog.

Outlook Tech Community

Icon Community

Get help in the community

Ask a question and find solutions from Support Agents, MVPs, Engineers, and Outlook users.

Outlook Forum on Answers

Icon feature request (light bulb, idea)

Suggest a new feature

We love reading your suggestions and feedback! Share your thoughts. We're listening.

Outlook UserVoice

See Also

Fixes or workarounds for recent issues in Outlook for PC

Get support
Contact us
Expand your Office skills
Explore training

Was this information helpful?

Thank you for your feedback!

Thank you for your feedback! It sounds like it might be helpful to connect you to one of our Office support agents.

×