Enrich positive replies in Clay and post them to Slack

When a reply is labeled Interested, a webhook sends it to Clay. Clay enriches the lead and posts to Slack with the thread URL from the payload, so reps click straight into the conversation.

Data outClaySlackRevOpsSDR managerTeam plan
When
Add LabelInterested
Then
Send a webhookSend the prospect, company, reply text and thread URL to your Clay table

Why teams run it

Reps get enriched context and a one-click path to reply.

Set it up in Master Inbox

  1. In Master Inbox, open Settings, then Workflows, and click Add a workflow.
  2. Name it Enrich positive replies in Clay and post them to Slack.
  3. Set the trigger to Add Label and choose Interested.
  4. Add the action Send a webhook: Send the prospect, company, reply text and thread URL to your Clay table.
  5. Save the workflow and switch it to Active.

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": "Enrich positive replies in Clay and post them to Slack",
  "trigger_type": "add_label",
  "trigger_config": {
    "label_ids": [
      176479
    ]
  },
  "action_configs": [
    {
      "action_type": "webhook",
      "webhook_url": "https://hooks.example.com/master-inbox",
      "webhook_payload_variables": [
        "name",
        "email",
        "company_name",
        "label_names",
        "thread_url",
        "text"
      ]
    }
  ]
}'

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: "Enrich positive replies in Clay and post them to Slack". 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

Why not post to Slack from Master Inbox?

You can. Use this route when the Slack message needs Clay's enrichment in it.

Can Clay write data back?

Yes. Clay can call the update-prospect endpoint to set custom fields.

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.

Learn more

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