Slack

Type ID: slack  ·  Kind: Action  ·  Ports: 1 in, 1 out

Send messages to Slack channels, groups, and direct messages via the Slack Web API.

Credentials

Slack

Resources & operations

• Message (message)
  • Send (send) - Send a message to a channel, group, or user.

Properties

Common

Property	Key	Type	Required	Default	Possible values	Applies when
Resource	resource	options	Yes	message	Message (message)	-
Operation	operation	options	Yes	send	Send (send)	resource = message

Message → Send

Property	Key	Type	Required	Default	Possible values	Applies when
Channel/User	channel	string	Yes	''	Channel name (e.g. #general), channel ID (e.g. C1234567890), or user ID (e.g. U1234567890)	resource = message, operation = send
Message Text	text	string	Yes	''	Free text; supports markdown, @mentions, :emojis:, links (<url|text>)	resource = message, operation = send
Advanced Message Options	additionalFields	object	No	{}	Collection (see below)	resource = message, operation = send

additionalFields collection options:

Property	Key	Type	Required	Default	Possible values
Thread Timestamp	thread_ts	string	No	''	Parent message ts value to reply in-thread
Use Markdown	mrkdwn	boolean	No	true	true / false
Link Names	link_names	boolean	No	true	true / false
Unfurl Links	unfurl_links	boolean	No	true	true / false
Unfurl Media	unfurl_media	boolean	No	true	true / false

Notes

• Channel/User and Message Text are both required; if either is empty the node errors before sending.
• Output: { success, channel, timestamp, message: { text, ts, user, bot_id, bot_name, thread_ts } }.