Outage in Slack

Issues with some third-party app message components

Resolved Minor
July 15, 2025 - Started 1 day ago - Lasted 1 day
Official incident page

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Outage Details

Some third-party apps may be experiencing connection issues. Users may receive an "invalid argument error" when using the block. suggestion API. We're investigating and will let you know as soon as we have more information to share. We appreciate your patience.

Components affected
Slack Apps/Integrations/APIs
Latest Updates ( sorted recent to last )
about 23 hours ago - at 07/15/2025 09:42PM

Our work on this issue is still ongoing.Current status and actions being taken: We've identified the cause of the issue and are working to get a permanent fix out the door to affected users.We'll be back with another update once the fix is fully out.

1 day ago - at 07/15/2025 06:52PM

We're seeing an increase in reports of this issue recurring for some users. We're investigating additional causes but wanted to share an update. Some users may still encounter trouble with interactive elements from custom apps such as dropdown menus in Slack.Current status and actions being taken: We're investigating new reports of this issue recurring for some users, even after a hard refresh.Estimated time to resolution: No known estimated time.Scope: A subset of custom apps that depend on interactive elements such as dropdown menus.Current impact to end users: Some users may see "Nothing could be found" or blank results when trying to select an item in a custom app form.Known workarounds: Users may continue trying to refresh their client (Cmd/Ctrl + Shift + R).We appreciate your patience as we work to get things back in shape.

1 day ago - at 07/15/2025 02:18PM

This issue is now resolved for all users.Current status and recent actions taken: We reverted a recent change to block kit functionality, which triggered the issue.Scope: A subset of users building custom/third-party apps.Previous impact to end users: An "invalid argument error" would be logged in the app logs if the custom app relied on the block.suggestion API. Users would experience elements such as a select menu/dropdown not returning proper values, or the items would show blank. If you’re still encountering any trouble, please reload Slack using Command + Shift + R (Mac) or Ctrl + Shift + R (Windows/Linux).We apologize for any disruptions to your day.

1 day ago - at 07/15/2025 01:25PM

Our work on this issue is still ongoing.Current status and actions being taken: We've rolled back the change that caused the issue and verified the fix in our dev and test environments. If you’re still encountering any trouble, please reload Slack using Command + Shift + R (Mac) or Ctrl + Shift + R (Windows/Linux). We appreciate your patience as we work to resolve the issue.


1 day ago - at 07/15/2025 08:30AM

Some third-party apps may be experiencing connection issues. Users may receive an "invalid argument error" when using the block. suggestion API. We're investigating and will let you know as soon as we have more information to share. We appreciate your patience.

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