Monday October 22 - Saturday August 24, 2019


Degraded functionality

Technical Summary:

On October 22nd, at approximately 8:37 PM PT, we experienced a small network issue which caused one of our servers to disconnect. This affected the queue that hosts user actions and core functionalities, ranging from push notifications to managing team members. A small subset of our customers experienced degraded functionality during this time.

Our team worked to ensure that we had a plan to resolve the issue, and this was completed by 10:50 PM PT on October 23rd. We continued to monitor the situation, and finally declared the incident fully clear at 11:34 PM PT.

We’re investigating the root cause, as well as making plans to ensure this doesn’t happen in the future.

2:25 PM PST

Thanks for your patience and understanding while we worked to resolve issues with loading new messages. Everyone affected should now be able to access their messages as usual, but please let us know if you run into any further problems at

12:24 AM PST

We're currently experiencing some intermittent degraded functionality, which may cause a very small number of users to have trouble loading new messages in Slack. We're sorry for the disruption, and hope to have things back to normal shortly.

8:37 PM PST

Services affected