Prerequisites
You must connect your Slack workspace before using this node.Connect Slack
Navigate to Settings > Integrations in Conversion. Locate Slack and click Connect. Authorize the Conversion app in your Slack workspace.Once authorized, the integration displays a green Connected badge.
Enable private channels (optional)
By default, only public channels appear in the channel selector. To send messages to a private channel, you must manually invite the Conversion app to that channel:Run this command inside the private channel in Slack. The channel will then appear in the Conversion channel selector.
Configuration
| Setting | Description |
|---|---|
| Workspace | Select which connected Slack workspace to use (relevant if you have multiple workspaces connected). |
| Channel | Choose the public or private channel where the message will be posted. Private channels only appear if @Conversion has been invited. |
| Message | Compose the message content. Use static text, dynamic variables, or a combination of both. |
If the channel you are looking for isn’t appearing in the dropdown, you can paste in the 
Channel ID (found under the channel Settings → About) into the search bar.Dynamic values in messages
Type/ in the message field to open the command menu and insert liquid expressions, contact fields, or tokens. Values resolve at runtime with the contact’s current data.
Text inputs in this node support Liquid templating. Type
/ to choose from Add liquid, Add a field, or Add a token to insert dynamic values.Behavior
- The node sends one Slack message per contact that passes through it.
- Messages are sent immediately when the contact reaches the node (subject to any upstream delays).
- If the Slack workspace is disconnected or the channel no longer exists, the message fails silently and the contact continues to the next node.
Use cases
| Use case | Channel | Message content |
|---|---|---|
| Sales alerts | #sales-alerts | New high-intent lead with enrichment data (name, company, title, lead score) |
| Marketing ops | #marketing-ops | Campaign performance updates, audience changes |
| CS hand-offs | #customer-success | Lifecycle stage transitions, churn risk indicators |
| Deal desk | #deal-desk (private) | Opportunity value or stage milestones |
Troubleshooting
| Issue | Solution |
|---|---|
| Private channel not visible in selector | Invite @Conversion to the channel with /invite @Conversion |
| Message not sending | Verify the workspace connection in Settings > Integrations. Confirm the target channel is still active. |
| Variables not resolving | Ensure the fields are mapped in your CRM/MAP integration and have values on the contact record. |