Pause the Smartlead campaign when a lead books a meeting on Calendly

The moment a prospect books through Calendly or Cal.com, Master Inbox pauses them in the Smartlead campaign and labels the thread Meeting booked, so no cold step lands after the booking.

Meetings

Smartlead

Calendly

Cal.comSDR managerRevOpsTeam plan

When

Meeting BookedFrom Cal.com or Calendly

Then

Pause in SmartleadPause the lead in the active campaign

And

Add labelsMeeting booked

Why teams run it

Prospects who just booked do not get a bump email an hour later.

Set it up in Master Inbox

In Master Inbox, open Settings, then Workflows, and click Add a workflow.
Name it Pause the Smartlead campaign when a lead books a meeting on Calendly.
Set the trigger to Meeting Booked and choose From Cal.com or Calendly.
Add the action Pause in Smartlead: Pause the lead in the active campaign.
Add the action Add labels: Meeting booked.
Save the workflow and switch it to Active.

Before you start, connect Smartlead, Cal.com or Calendly 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": "Pause the Smartlead campaign when a lead books a meeting on Calendly",
  "trigger_type": "meeting_booked",
  "trigger_config": {},
  "action_configs": [
    {
      "action_type": "pause_from_campaign_smartlead",
      "campaign_ids": [
        "camp-1"
      ]
    },
    {
      "action_type": "add_labels",
      "label_ids": [
        176480
      ]
    }
  ]
}'

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: "Pause the Smartlead campaign when a lead books a meeting on Calendly". 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 pause instead of remove?

Pausing keeps the lead's history in the campaign. If the meeting is cancelled, a second workflow can resume them.

Does it stop the AI reply agent too?

Yes, when the agent has stop after a meeting is booked turned on.

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.