Tuesday December 2, 2025

This issue is now resolved for all users. At around 9:10 PM PST, we fully resolved the search functionality issues impacting message indexing and the visibility of new content.

• Current status and actions taken: Search performance has fully recovered, and new messages are now indexing as expected. All content, both new and previously delayed, should now appear in search results without latency. System metrics have stabilised, and no further errors are being observed.
• Next steps: Our teams will conduct a thorough investigation to determine the technical trigger, identify the root cause, and implement preventive measures to prevent similar issues in the future. 
  
  

We apologise for any disruptions to your day.

We edited this post to clarify next steps and adjust the resolution timestamp to PST timezone.

9:59 PM PST

Our work on this issue is still ongoing.

• Current status and actions being taken: The backfill operation is progressing well and is expected to finish in approximately 4 hours. We are monitoring the situation closely. 
  
  We’ll provide the next update as soon as the backfill completes or if any significant developments arise.

5:09 PM PST

Our work on this issue is still ongoing.

• Current status and actions being taken: We’re continuing to make progress on the backfill operation and are monitoring it closely. Search queries and real-time indexing are back to normal, and new content is immediately searchable.

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

4:41 PM PST

Our work on this issue is still ongoing.

• Current status and actions being taken: Search queries and real-time indexing are now functioning as expected. We are currently backfilling messages that accumulated during the incident. While new content is searchable immediately, messages sent during the downtime will not appear in search results until the replay process is complete. We expect this to take some time and are monitoring progress closely.

We appreciate your patience and will be back with another update as soon as we have news to share.

3:58 PM PST

Our work on this issue is still ongoing.

• Current status and actions being taken: We have restored the system to a stable state. Re-running the search queries should now proceed without error. We continue to closely monitor the results.

We appreciate your patience and will be back with another update as soon as we have news to share.

3:17 PM PST

Our work on this issue is still ongoing.

• Current status and actions being taken: We have restored the system to a stable state. Re-running the search queries should now proceed without error. We are monitoring the results closely.

We appreciate your patience and will be back with another update as soon as we have news to share.

2:47 PM PST

Our work on this issue is still ongoing, but no new information to share just yet.

We appreciate your patience and will be back with another update as soon as we have news to share.

2:15 PM PST

Our work on this issue is still ongoing, but no new information to share just yet.

• Current status and actions being taken: We're still working to fully resolve the search issues, including indexing. Users may still experience latency when querying new messages/content, but older content should appear in search results.

We appreciate your patience and will be back with another update once we have news to share.

1:46 PM PST

We identified the cause but our work on this issue is still ongoing.

• Current status and actions being taken: We are seeing signs of improvement with overall search functionality. Some new messages may not appear in search results as message indexing is currently experiencing latency. We are actively working to restore message indexing and fully resolve the issue.

We'll be back with another update once we have news to share.

1:12 PM PST

Our investigation is still ongoing.

• Current status and actions being taken: We're currently investigating search related errors to determine a path to resolution. Some results may appear for some users, but we're still investigating.
• Estimated time to resolution: No estimate to provide at this time.
• Scope: Users that are not-IDR (International Data Residency) globally may experience trouble.
• Current impact to end users: Users may experience latency in Search, or results may not appear for some users.
• Known workarounds: No workarounds to offer.

We appreciate your patience as we sort this out.

12:44 PM PST

We're investigating a new incident.

• Current impact to end users: We are currently investigating reports of search functionality issues in Slack. Users may experience increased latency or errors when attempting to search.

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

12:08 PM PST