Can you automate messages in Slack?
Quick Answer: Yes. Slack provides Workflow Builder, a built-in no-code automation tool for creating scheduled messages, form-triggered responses, and multi-step workflows. Additional automation is possible via Slack's API, Zapier, Make, and other integration platforms.
Automating Messages in Slack
Slack offers multiple automation methods as of April 2026: the built-in Workflow Builder (available on all paid plans), the Slack Platform for custom functions, and third-party integrations through Zapier, Make, and similar tools.
Workflow Builder (Built-In)
Workflow Builder is a no-code tool accessible from Slack's left sidebar under Automations:
Available Triggers
- Webhook: Start a workflow from an external HTTP request
- Scheduled: Run at specified times (daily, weekly, custom cron)
- Emoji reaction: Trigger when a specific emoji is added to a message
- Channel join: Trigger when a member joins a channel
- Shortcut: Manually triggered from the message compose area
Available Steps
- Send a message: Post to a channel or DM with formatted text and variables
- Collect information: Display a form to gather input from a user
- Send an email: Send an email to specified addresses
- Insert a channel bookmark: Add a link to the channel bookmarks bar
- Set channel topic/purpose: Update channel metadata
- Create a channel: Spin up a new channel programmatically
Common Automation Patterns
Daily Standup Collection
- Trigger: Scheduled daily at 9 AM
- Step 1: Send a form to team members asking for yesterday's work, today's plan, and blockers
- Step 2: Compile responses and post a summary to #standup channel
New Employee Welcome
- Trigger: Member joins #general or #new-hires
- Step: Send a welcome DM with onboarding resources and key channel links
Incident Response
- Trigger: Emoji reaction (:rotating_light:) added to a message
- Step 1: Create a new #incident channel
- Step 2: Post the flagged message to the incident channel
- Step 3: Notify the on-call team via DM
Third-Party Integrations
- Zapier: 30+ Slack triggers and actions, connecting to 9,000+ apps
- Make: Slack module for sending messages, managing channels, and processing events
- n8n: Self-hosted option for Slack automation with custom code
Slack Platform (Developer)
The Slack Platform allows developers to build custom functions in TypeScript/JavaScript (Deno runtime) that run on Slack's infrastructure. These functions can be combined with Workflow Builder triggers for custom automation logic.
Plan Requirements
| Feature | Free | Pro | Business+ | Enterprise Grid |
|---|---|---|---|---|
| Workflow Builder | No | Yes | Yes | Yes |
| Slack Platform | No | Yes | Yes | Yes |
| Third-party bots | Yes | Yes | Yes | Yes |
Related Questions
Related Tools
Slack
Team messaging platform with Workflow Builder for creating automated processes without code.
Workflow AutomationZapier
Automate workflows between apps without coding—connect 9,000+ tools with simple, reliable automation.
Workflow AutomationMake
Automate your work with visual workflow builder and AI agents
Workflow AutomationActivepieces
No-code workflow automation with self-hosting and AI-powered features
Workflow AutomationRelated Rankings
Best Human-in-the-Loop Automation Platforms 2026
Eight platforms are ranked here on a single mechanism: how a person enters an automated path, and what the system can prove afterward about the decision they made. Moxo scores 7.7 and ranks first; Camunda 8 scores 7.2, Microsoft Power Automate 7.1, Pega 6.9, n8n 6.7, Zapier 5.9, Kissflow 5.8 and ServiceNow 4.8, scored 22 September 2026 on the five weighted criteria. Those criteria cover the step type, the approver's account or licence, the routes available on a rejection, the audit record, and the meter that charges for the decision, and none of them can tell a review from a rubber stamp, so the methodology adds a check readers can run on any product in a few minutes: whether the decision record tells a considered approval from an instant one. Every figure was read from a vendor-owned surface and carries its own date.
Best Automation Platforms for AI Orchestration 2026
This ranking answers one question: how many real business applications can an AI agent act on out of the box? It evaluates nine platforms as of August 2026 on the reach they give an agent, not on the workflow logic they can express. That boundary is deliberate, because two neighbouring pages on this site answer different questions. Best Process Orchestration Platforms 2026 scores multi-step process control, error handling and state management. Best AI Agent Platforms 2026 scores building and hosting the agent itself. This page scores the layer between them: the connective tissue that lets an agent already built elsewhere reach the applications a business actually runs on. A platform that leads one of those pages can place low here, and two of them do. Scores derive from application and action catalogue counts, the exposure model each platform uses to publish those catalogues to an agent, setup effort, failure handling and cost per agent action. Every figure was retrieved from a vendor-owned surface on 11 August 2026 unless an earlier date is stated against it.
Dive Deeper
Moxo vs Gumloop in 2026: Texting the Client, or Building the Agent
Gumloop (founded 2023) builds AI agents a company's own staff run; Moxo, whose predecessor Moxtra was co-founded in 2012, runs processes that wait on people outside the company. Gumloop wins three rounds to two: the way in, per-tool gating and a priced overage. Moxo wins on texting a client a step and on what that client can be asked to do. Vendor pages and docs were read on 28 September 2026.
Moxo vs Relay.app in 2026: Where Relay's Approval Workflows Can Go Next
Relay.app, founded in 2021, shut down in September 2026 and deleted every account, workflow and run history; Moxo, whose predecessor Moxtra was co-founded in 2012, is one destination for its human-in-the-loop users. Relay.app takes two rounds, Moxo one, and vendor risk is a draw. The page maps which Relay steps Moxo replaces, on which plan, and what the shutdown teaches about exports, from sources read 28 September 2026.
Moxo vs Workato in 2026: The Integration Estate, or the Approval Inside It
Workato, founded in 2013, is an enterprise integration platform whose Workflow apps add human tasks to recipes; Moxo, whose predecessor Moxtra was co-founded in 2012, ships the human step itself. Workato wins three rounds to two: connector reach, change control and the way in. Moxo wins the human step and retries. Vendor pages and docs were read on 28 September 2026.