Slackbot event-triggered tasks: what they do, which plans get them, and the limits
Slackbot event-triggered tasks, announced by Slack on October 28, 2026, let Slackbot start a task the moment something happens in Slack instead of only on a schedule or when you ask. Four triggers are supported at launch: a message is posted, an emoji reaction is added, a list item is updated, or a channel is created. For each task you choose "ask me first" or let it run automatically. They are part of Slackbot, Slack's personal AI agent, so they are fully available on Business+ and Enterprise plans, while Free and Pro only get Slackbot during a trial or preview. Slack classes them as an Advanced action, and Slackbot task runs are capped at three automatic runs per day.
What are Slackbot event-triggered tasks?
Slackbot tasks used to start in two ways: on a schedule, such as every Monday at 9 AM, or when you asked in a conversation. Slack's October 28 announcement adds a third way: Slackbot reacts to an event, either on its own or after your approval.
Slack's own examples show the idea. In a customer account channel, a teammate adds an emoji reaction to an update and Slackbot adds it to their action items list with recommended next steps and owners. In operations, someone reacts to the last note of a shift and Slackbot drafts the handoff summary for the next owner. In finance, a contract question posted in an approvals channel gets checked against policy, and Slackbot drafts the approval note and pings the approver, who reviews and sends.
| Trigger | Example | Approval |
|---|---|---|
| Schedule | Every Monday at 9 AM, post my priorities | Runs on schedule |
| Conversation | You ask Slackbot to do something now | You are in the loop |
| Message posted | A new request lands in an intake channel | Ask me first, or automatic |
| Reaction added | A teammate reacts to flag an update for follow-up | Ask me first, or automatic |
| List item updated | A status changes in a Slack list | Ask me first, or automatic |
| Channel created | A new client or project channel appears | Ask me first, or automatic |
Source: Slack blog: Slackbot gets more proactive, in more places, October 28, 2026.
Which Slack plans include event-triggered tasks?
Event-triggered tasks are a Slackbot feature, so they follow Slackbot's availability. Slack's Slackbot limits and credit usage article says, as of October 30, 2026:
- Free and Pro: Slackbot is available only during a trial or preview. When the preview messages are used up, you need to upgrade or enable Salesforce Flex Credits.
- Business+: each member can send 15 messages to Slackbot per week, resetting Monday at midnight in their time zone.
- Enterprise+ (and Enterprise Select or Grid with the Slack AI add-on): no weekly or lifetime message limits.
The same article lists Slack event-triggered tasks as an Advanced action alongside deep research and document creation. That matters if you pay with Flex Credits, where Advanced actions are metered at a different rate. Slack's announcement adds that Advanced Features have no limits at launch for Enterprise+, that limits may come later with 30 days' notice, and that standard Slackbot messaging stays unlimited on Enterprise+.
For reference, Slack's pricing page lists Business+ at $15 per user a month and Enterprise+ at $45, both billed annually.
How do you set up a Slackbot task?
Slack's help article How to work with Slackbot documents the task flow: open Slackbot, go to the Tasks tab, click Add Task, choose Create with Slackbot, and describe what the task should do, when it should run, how often and when it should stop. For an event trigger, describe the event instead of a time, for example "when someone adds the follow-up reaction to a message in the account channel, add it to my action items with an owner and a due date." Then choose whether Slackbot should ask you first.
Slack has not published a separate step-by-step help article for event triggers as of October 30, 2026, so expect the exact menus to change as the feature rolls out. Start with "ask me first" until you trust the output.
If you want a fixed process with an AI step inside it, the related new Workflow Builder step, Start conversation with Slackbot, lets a workflow pass a prompt and variables to Slackbot and get structured output back. A new-hire form that drafts a welcome checklist is Slack's example. Our Workflow Builder examples cover the non-AI side.
What are the limits of event-triggered tasks?
- Three automatic runs a day. The help center says you get three automatic task runs per day, after which Slackbot asks whether to run tasks manually; the count resets at midnight in your time zone. A trigger in a busy channel can use that up by mid-morning.
- It is a personal agent. Slack describes Slackbot as a personal AI agent that uses what you can already see. A task works for the person who created it, not as a shared teammate the whole channel can direct.
- Plan cost. A team on Pro has to move to Business+ for regular use, which is roughly double the per-seat price, and Business+ members still have a 15-message weekly cap.
- Guests are excluded. Guests and frontline members do not have access to Slackbot.
- Outside tools depend on connections. Slackbot can use MCP connections and skills, but work that needs your Gmail, a Google Sheet and a project tracker together depends on what your workspace has connected.
For background on reusable instructions, see our Slackbot skills guide; for the bigger picture, Slack AI vs a third-party AI coworker.
When does a shared AI coworker make more sense?
Event-triggered tasks are a good fit when one person wants Slackbot to watch for a signal and do a small job for them, such as turning flagged messages into action items. They are a weaker fit when a whole channel needs to hand work to the same agent, when you are on Free or Pro and do not want to upgrade every seat, or when the job is a recurring written deliverable built from several tools.
Geniusly is an AI coworker for your team in Slack. It reads the accounts you connect (Gmail, Google Drive, Google Sheets, Slack, GitHub, Linear, and Google Ads) and prepares a brief, report, status update, or handoff for a person to review. Connected apps are read-only by default, except Google Sheets edits you explicitly ask for, and Slack messages beyond its reply are posted only after your approval. Anyone in a channel it has been invited to can ask it for work, it can run a task once, daily, or weekly, and it has a Free plan. It does not react to Slack events on its own today; you ask in a channel or schedule the task. Compare it with other options in best AI coworkers for Slack, or get started with Geniusly free.
Frequently asked questions
What triggers can a Slackbot task use?
At launch on October 28, 2026: a message posted, an emoji reaction added, a list item updated, or a channel created. Tasks can also still run on a schedule or when you ask in conversation.
Are Slackbot event-triggered tasks free?
Not on the Free or Pro plans beyond a trial or preview. Slackbot is included on Business+ (15 messages per member per week) and Enterprise+ (no message limits). Slack lists event-triggered tasks as an Advanced action, which is metered differently if you pay with Flex Credits.
Can Slackbot run a task without asking me?
Yes. For each event-triggered task you choose between ask me first and automatic approval. Starting with ask me first is the safer default.
How many times a day can a Slackbot task run?
Slack's help center says you get three automatic task runs per day; after that Slackbot asks whether to run tasks manually. The limit resets at midnight in your time zone.
What is Slackbot Mini?
Slackbot Mini, announced the same day, is a floating window and menu bar icon that lets you ask Slackbot questions, run research or start a skill without opening the Slack client.
Can my whole team direct one Slackbot task?
Slack describes Slackbot as a personal agent that works with what you can see, and tasks belong to the person who created them. If a team needs one shared agent that anyone in a channel can ask, a shared AI coworker app is the closer fit.