Wednesday October 22, 2025

Between 3:00 AM PDT and 11:00 PM PDT on October 22, 2025, some Slack users experienced trouble with searching. Search results for these users were either missing or only returning partially.

A backend indexing job, which processes search results, experienced a backlog of errors. The errors required a large number of job retries, causing the partial results. We implemented a fix by optimizing the retry handling logic, resolving the issue for all affected users.

3:40 PM PST

We identified the cause of the issue and implemented a fix that restored the search functionality for both public and private channels.

We are sorry for any inconvenience caused during this incident.

7:15 AM PST

We've identified the cause and have implemented a fix that restored some search functionality. We're still working to resolve an underlying issue connected to older content (like older messages) not appearing in search results. We'll provide an update once that fix is applied. Thanks again for your patience in the meantime.

1:27 PM PST

We're continuing the investigation into the issue that’s affecting Slack’s Search functionality. Users may still experience issues when searching for recent messages or files, or may see incorrect results when using keywords or searching within channels. We’ll share another update as more information becomes available. Thank you for your patience.

7:24 AM PST

We're continuing to investigate an issue that has resurfaced which affects the Search functionality.
Some users may be unable to find recent content, see incomplete or unexpected results when using keywords, or experience errors while searching within channels. 

We’ve identified residual impact from a previous incident and are working to restore functionality.
We’ll share another update in 30 minutes or sooner as progress continues. Thank you for your patience while we work to resolve this issue.

5:28 AM PST

We've noticed that the Slack Search functionality issue has resurfaced, and we're investigating. A subset of users is seeing Search indexing failures for messages, files, reactions, stars, and pins. This issue affects both private and public channels. We appreciate your patience while we work to resolve this issue.

4:11 AM PST

From 6:00 AM PDT to 9:18 AM PDT on October 22, 2025, some Slack workspaces with EKM (Enterprise Key Management) enabled may have experienced issues with sending messages, uploading files, using Slack Connect, querying search, Slack AI, and using workflows.

We traced this back to an unexpected spike in traffic to our backend service responsible for EKM processes, leading to a reduction in service responsiveness. We identified the problematic servers and initiated a restart, restoring full functionality to the EKM backend services.

While our initial communication indicated issues related to sending messages and file uploads, our follow up reviews have identified additional features that were also affected, including:

• Slack Connect
• Search
• Slack AI
• Workflows

9:29 AM PST

This issue is now resolved for all users.

• Current status and recent actions taken: We've addressed the problematic backend services and success rates have returned to normal. Our health metrics confirm affected featuers are operational.
• Scope: A small number of enterprise users with EKM enabled.
• Previous impact to end users: Some users may have seen trouble sending or receiving messages, including threads, as well as uploading files (or viewing previews/thumbnails).
• Required resolution steps: No required steps.

We apologize for any disruptions to your day.

9:25 AM PST

Our work on this issue is still ongoing, but no major updates to provide at this time.

• Current status and actions being taken: We're currently working toward a path to fully resolve the issue, but continue to observe signs of improvement.

We'll provide another update in 30 minutes until impact is resolved for all users.

9:00 AM PST

We're continuing to investigate this issue, but have identified the root cause as being related to Enterprise Key Management (EKM) servicing issues. We are also observing some signs of improvement with message sending, but we continue to work toward a full resolution.

• Current status and actions being taken: We've identified the root cause and are focused on resolving the EKM servicing issues.
• Estimated time to resolution: None at this time.
• Scope: Enterprise orgs with EKM services enabled.
• Current impact to end users: Some users may experience trouble loading file previews/thumbnails and sending or receiving messages, including threads.
• Known workarounds: None at this time.

We'll be back with another update in 30 minutes or sooner.

8:25 AM PST

We're investigating a new incident.

• Current impact to end users: Users may see inconsistent errors when attempting to send messages in Slack, and some file previews/thumbnails may have trouble loading.

We'll provide an update within 30 minutes including further details on current actions being taken.

8:02 AM PST