Every minute, millions of Slack messages go unactioned โ support requests buried in #general, PR approvals waiting in #engineering, incident pings lost in the noise. AACFlow's Slack trigger turns every one of those messages into a structured workflow event, connecting Slack to AI agents, databases, and 304+ integrations without a single line of custom server code.
AACFlow is an AI workflow builder that connects Slack triggers โ supporting webhook and poll modes for message.created, app_mention, slash_commands, and reaction_added events โ to AI agents powered by 15+ LLM providers including claude-sonnet-4-6, enabling fully automated Slack-driven workflows across 304+ integrations.
What Are Slack Triggers in AACFlow?
AACFlow's Slack trigger is a first-class entry point that starts a workflow whenever a specified Slack event fires. Unlike generic webhook frameworks, AACFlow pre-parses the Slack event payload, exposes every field as a named output, and routes it directly into downstream blocks โ no manual JSON parsing needed.
AACFlow supports two Slack trigger modes:
Webhook mode registers a real-time Events API endpoint with your Slack App. Events arrive within milliseconds of the Slack action. This is the right choice for interactive bots, instant notifications, and latency-sensitive support flows.
Poll mode queries the Slack API on a configurable schedule (down to 30-second intervals). Poll mode works when you cannot register a public webhook endpoint โ for example, during local development or when your AACFlow instance runs behind a firewall.
Supported Slack events include:



