Slack

Overview

Send messages and manage Slack from your workflows via the Slack Web API. Pick a resource and operation, and the node surfaces only the fields that operation needs. Text and channel fields support {{variables}}.

Operations

• Message — Send, Update, Delete, Get Permalink, Search
• Channel — Create, Get, Get Many, History, Invite, Archive
• User — Get, Get Many, Lookup by Email
• Reaction — Add, Remove

Configuration

• Credential — select a Slack credential (Bot User OAuth token)
• Channel — channel ID (e.g. C0123456789) for message, history, invite, archive, and reaction operations
• Message Text — message body for Send/Update (supports {{variables}})
• Blocks — optional Slack Block Kit JSON array for rich layouts
• Output Variable — name to store the Slack API response under

Example

• Resource: Message · Operation: Send
• Channel: C0123456789
• Text: New patient intake from {{$json.name}} — review in the portal.

Common Use Cases

• Team alerts — notify a channel when a workflow needs human attention
• Care-team coordination — post intake or escalation summaries to a shared channel
• Status reactions — add a ✅ reaction once a downstream step completes

Notes

• The Slack app must be a member of any channel it posts to or reads from.
• Search requires a user token rather than a bot token; bot-only installs return a Slack permissions error.

Required Credentials