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AppsSlack ToolsSlack Send Ephemeral Message
Slack Tools

Slack Send Ephemeral Message

Sends an ephemeral message visible only to the specified `user` in a channel; other channel members cannot see it. Both the bot and the target user must be members of the specified channel.

Write actionRisk level 2 of 5OAuth connection
Use Slack Send Ephemeral Message

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Pricing
Free
Unified payment
Not currently supported

Inputs

  • textstring
    The message text to display. Required unless 'blocks' or 'attachments' is provided. When using blocks, this serves as fallback text for notifications. Supports markdown formatting.
  • userstring
    Required
    User ID of the user to send the ephemeral message to.
  • parsestring
    Controls text parsing behavior. Use 'full' to enable automatic linking of @mentions, #channels, and URLs. Use 'none' to disable special parsing (URLs will still be clickable). Defaults to 'none'.
  • blocksstring
    A JSON-based array of structured blocks, presented as a URL-encoded string.
  • as_userboolean
    Legacy parameter for authenticated user authorship. Defaults to true without chat:write:bot scope, false otherwise. Setting to true requires chat:write:user scope for the authenticated user to author the message.
  • channelstring
    Required
    Channel, private group, or DM channel to send message to. Can be an encoded ID, or a name. **IMPORTANT:** org-wide (Enterprise Grid) tokens cannot resolve channel names — Slack returns `team_not_found`. Pass the channel ID (e.g., `C0ABC12345`) instead; use SLACK_LIST_ALL_CHANNEL…
  • icon_urlstring
    URL to an image to use as the icon for this message. Must be used in conjunction with as_user set to false, otherwise ignored. See authorship below.
  • usernamestring
    Set your bot's user name. Must be used in conjunction with as_user set to false, otherwise ignored. See authorship below.
  • thread_tsstring
    Provide another message's ts value to make this message a reply. Avoid using a reply's ts value; use its parent instead.
  • icon_emojistring
    Emoji to use as the icon for this message. Overrides icon_url. Must be used in conjunction with as_user set to false, otherwise ignored. See authorship below.
  • link_namesboolean
    Find and link channel names and usernames.
  • attachmentsstring
    This is Slack's legacy 'secondary attachments' field for adding rich formatting elements like colored sidebars, structured fields, and author info. Pass as a JSON string array. NOT for file/image uploads. To send files or images, use 'SLACK_UPLOAD_OR_CREATE_A_FILE_IN_SLACK' inst…

Observable output

  • data
    Required
    Data from the action execution
  • errorstring
    Error if any occurred during the execution of the action
  • successfulboolean
    Required
    Whether or not the action execution was successful or not

Skills that use this Action

Related use cases

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Skills that use this Action

No published Skills explicitly reference this Action yet.