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Send Message

Sends a message to a Slack channel.

Common Properties​

  • Name - The custom name of the node.
  • Color - The custom color of the node.
  • Delay Before (sec) - Waits in seconds before executing the node.
  • Delay After (sec) - Waits in seconds after executing node.
  • Continue On Error - Automation will continue regardless of any error. The default value is false.
info

If the ContinueOnError property is true, no error is caught when the project is executed, even if a Catch node is used.

Inputs​

  • Client Id - The unique identifier for the Slack client connection obtained from the Connect node.
  • Channel Name - The name or ID of the Slack channel where the message will be sent.
  • Message - The text content of the message to be sent.

How It Works​

The Send Message node sends a text message to a specified Slack channel. When executed, the node:

  1. Retrieves the Client Id, Channel Name, and Message from the inputs
  2. Validates the Client Id by checking if a connection exists
  3. Ensures the Channel Name and Message are not empty
  4. Calls the Slack API to send the message to the specified channel

Requirements​

  • A valid Slack client connection (Client Id from the Connect node)
  • Valid Slack channel name or ID where the bot has permission to post messages
  • Sufficient permissions for the bot to send messages to the specified channel

Error Handling​

The node will return specific errors in the following cases:

  • Invalid Client Id that doesn't correspond to an existing connection
  • Empty or invalid Channel Name
  • Empty Message content
  • Slack API errors when sending the message
  • Insufficient permissions to post messages to the channel

Usage Notes​

  • The bot must be a member of the channel to send messages to it
  • The bot must have the necessary scopes (chat:write, chat:write.public) to send messages
  • Channel Name can be either the channel name (e.g., #general) or channel ID
  • For private channels, use the channel ID rather than the name
  • Messages are sent as the bot user, not as a human user
  • Slack formatting (markdown) is supported in messages