Send Smartlead Interested replies to Slack as soon as the category is set

When a Smartlead reply is categorized Interested, the category syncs into Master Inbox as a label and a Slack card goes to your sales channel with the reply, the campaign and a link to the thread.

Alerts

Smartlead

SlackSDR managerRepTeam plan

When

Add LabelInterested, synced from the Smartlead lead category or set by AI labeling

Then

Notify in SlackPost to #hot-replies with the prospect, company, campaign, reply text and thread link

Why teams run it

Smartlead categories become instant team alerts, so nobody has to watch the Smartlead inbox for positives.

Set it up in Master Inbox

In Master Inbox, open Settings, then Workflows, and click Add a workflow.
Name it Send Smartlead Interested replies to Slack as soon as the category is set.
Set the trigger to Add Label and choose Interested, synced from the Smartlead lead category or set by AI labeling.
Add the action Notify in Slack: Post to #hot-replies with the prospect, company, campaign, reply text and thread link.
Save the workflow and switch it to Active.

Before you start, connect Slack under Settings, Integrations.

Or create it with the API

Everything in the workflow builder is also in the Master Inbox API. This request creates the same workflow. Replace the example ids with your own label, list and campaign ids from GET /workflows/filter-fields.

curl -X POST https://api.masterinbox.com/api/api-webhook/v1/api/workflows/create-workflow \
  -H "Authorization: Bearer $MASTER_INBOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "name": "Send Smartlead Interested replies to Slack as soon as the category is set",
  "trigger_type": "add_label",
  "trigger_config": {
    "label_ids": [
      176479
    ]
  },
  "action_configs": [
    {
      "action_type": "slack_notify",
      "payload_variables": [
        "name",
        "company_name",
        "label_names",
        "text",
        "thread_url"
      ],
      "show_draft": true
    }
  ]
}'

Full reference: workflow API guide and API docs.

Or ask Claude, ChatGPT or Grok to build it

Our workflow guide is written for AI agents to read. Give your assistant your API key and this prompt:

Read https://app.masterinbox.com/public-workflow-api.md and use my Master Inbox API key to create this workflow: "Send Smartlead Interested replies to Slack as soon as the category is set". First call GET /workflows/filter-fields and look up my label, list and channel ids, then create the workflow and tell me what you set up.

Questions

Do categories set inside Smartlead fire the workflow?

Yes. Lead categories imported from Smartlead add the matching label in Master Inbox, and that fires the Add Label trigger.

Does the label need the exact Smartlead category name?

Use the same name on both sides so label sync maps them one to one.

Can I build this workflow through the API?

Yes. Send the create-workflow request shown on this page with your Master Inbox API key. The API checks the payload first and lists every problem by field if anything is off.

Which plan includes this?

This workflow works on the Team plan. Every plan has unlimited users and starts with a free 7-day POC.