Log every label change to Google Sheets

When a label is added to a lead, a webhook sends the prospect id, labels, campaign and thread link to Zapier or n8n, which adds or updates a row in Google Sheets.

Reporting

Google Sheets

Zapier

n8nRevOpsSales leaderTeam plan

When

Add LabelAny label

Then

Send a webhookSend the prospect id, email, company, label names, campaign and thread URL to Zapier or n8n

Why teams run it

Finance and leadership teams that live in Sheets get pipeline data without logins.

Set it up in Master Inbox

In Master Inbox, open Settings, then Workflows, and click Add a workflow.
Name it Log every label change to Google Sheets.
Set the trigger to Add Label and choose Any label.
Add the action Send a webhook: Send the prospect id, email, company, label names, campaign and thread URL to Zapier or n8n.
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": "Log every label change to Google Sheets",
  "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: "Log every label change to Google Sheets". 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

Can rows be updated instead of duplicated?

Yes. Look up the prospect id in the sheet and update that row.

Can I log removals too?

Yes. Copy the workflow with the Remove Label trigger.

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.