
Pagination limitationįor methods supporting cursored pagination, the rate limit given applies when you're using pagination. Check out the conversations.list documentation for an example of a Tier 2 method.Įach tier's limits are subject to change. The Facts section of each method's reference documentation will indicate its rate limit tier. There's also a special tier for rate-limiting behavior that's unique to a method.Īll Slack plans receive the same rate limit tier for each method. Tier 1 accepts the fewest requests and Tier 4 the most.
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Rate limit windows are per minute.Įach Web API method is assigned one of four rate limit tiers, listed above. Your app's requests to the Web API are evaluated per method, per workspace. Read on for more details on how rate limits are applied to different Slack features and APIs. If the burst exceeds available limits, users will see an error message indicating that some messages from your app are not being displayed.ģ0,000 deliveries per hour per workspace. If you attempt bursts, there is no guarantee that messages will be stored or displayed to users. Consult the method's documentation to better understand its rate limiting conditions.

For example, chat.postMessage generally allows posting one message per second per channel, while also maintaining a workspace-wide limit. Rate limiting conditions are unique for methods with this tier. Sporadic bursts are welcome.Įnjoy a large request quota for Tier 4 methods, including generous burst behavior. Tier 3 methods allow a larger number of requests and are typically attached to methods with paginating collections of conversations or users. Most methods allow at least 20 requests per minute, while allowing for occasional bursts of more requests. A small amount of burst behavior is tolerated.

Feature/APIĪccess tier 1 methods infrequently. This article gives an overview of the rate limits you're likely to encounter for Slack platform features, and then notes how the limits apply to each feature.īroadly, you'll encounter limits like these, applied on a " per API method per app per workspace" basis. The details of how and when rate limiting works differs between features. Slack platform features and APIs rely on rate limits to help provide a predictably pleasant experience for users.
