All Systems Operational
API   Operational
Background Processing   Operational
Web App   Operational
Major Calendar Providers Operational
Apple   Operational
Google   Operational
Outlook.com   Operational
Office 365   Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
API uptime
Fetching
Web App uptime
Fetching
Past Incidents
Jun 24, 2018

No incidents reported today.

Jun 23, 2018

No incidents reported.

Jun 22, 2018

No incidents reported.

Jun 21, 2018

No incidents reported.

Jun 20, 2018
Resolved - This incident has been resolved.
Jun 20, 20:55 BST
Update - Less than 0.1% of Google accounts do not have a full compliment of change notification subscriptions now.

We will continue to monitor but it now looks like service has been fully restored for virtually all accounts.
Jun 20, 17:36 BST
Update - We've seen a significant drop in the number of errors when attempting to subscribe to change notifications as of around 14:40 UTC.

Google have reported that they are rolling out a fix but that it may take up to two days to propagate to all users.

We will continue to monitor and quantify the number of accounts still affected once the system has had some time to retry the failing subscription attempts.
Jun 20, 16:21 BST
Update - From our investigations ~3% of Google accounts do not have a full compliment of change notification subscriptions, with ~0.5% having no subscription at present.

Google are aware of the issue and are working to resolve it, there is no ETA on a fix at present.

Our systems will continue to attempt to establish any missing subscriptions so once the underlying problem is resolved service will return to normal.
Jun 20, 11:42 BST
Monitoring - We're seeing a high failure rate when subscribing to change notifications for Google calendars.

Not being able to subscribe to notifications will result in delayed notifications for changes made to affected calendars by the user.

This is not affecting all Google accounts, and in some cases we've been able to subscribe to a subset of calendars for an account. We are looking to more precisely quantify the impact.

There is an entry on Google's issue tracker (https://issuetracker.google.com/110373170) and we have reached out to our contacts at Google to try and make sure they aware of it.
Jun 20, 09:22 BST
Jun 19, 2018

No incidents reported.

Jun 18, 2018

No incidents reported.

Jun 17, 2018

No incidents reported.

Jun 16, 2018

No incidents reported.

Jun 15, 2018

No incidents reported.

Jun 14, 2018

No incidents reported.

Jun 13, 2018

No incidents reported.

Jun 12, 2018

No incidents reported.

Jun 11, 2018

No incidents reported.

Jun 10, 2018

No incidents reported.