Last update: June 19th, 12pm CET

Executive Summary

On May 29, 2025, Slack implemented significant API changes that affect third-party applications, including Dust's Slack integration. These changes require commercial applications to be listed on the Slack Marketplace to maintain full functionality. Applications not on the Marketplace face severe rate limiting that makes data synchronization impractical.

Impact:

• Customers who installed or reconnected our Slack app after May 29th are experiencing degraded performance
• Existing installations remain functional until September 2025
• ⚠️ Customers with existing Dust Slack App installations from before May 29, 2025 ****must avoid re-authenticating or reinstalling Dust app as this would subject them to the lower rate limits
• Integration with Slack is temporarily suspended for new customers
• Our response includes splitting our application into separate Slack Bot and Connection components to meet Slack's new requirements
• We are actively working with Slack to list a dedicated application on their marketplace to restore full functionality of interactions with @dust

What Changed

Slack has introduced new requirements for commercial applications:

• Marketplace Requirement: All commercial apps must be listed on the official Slack Marketplace to maintain full API access
• Rate Limiting: Non-Marketplace apps face drastically reduced rate limits on critical endpoints (conversations.history and conversations.replies)
• Restricted Use Cases: Slack's updated Marketplace terms prohibit bulk data indexing and enterprise search functionalities

Impact on Dust

Our Dust Slack application currently provides two key features:

1. Slack Bot: Direct agent interaction within Slack channels with full conversation context (https://docs.dust.tt/docs/slack)