Rebook no-shows with an Instantly subsequence

When a prospect misses the meeting, Master Inbox moves them into an Instantly no-show subsequence and adds a No-show label, so the rebook emails go out from the same campaign and mailbox.

Meetings

Instantly

Cal.com

CalendlySDR managerTeam plan

When

Meeting No-showFrom Cal.com or Calendly

Then

Add to Instantly subsequenceNo-show rebook subsequence

And

Add labelsNo-show

Why teams run it

Rebook emails come from the mailbox the prospect already knows, with no manual list upload.

Set it up in Master Inbox

In Master Inbox, open Settings, then Workflows, and click Add a workflow.
Name it Rebook no-shows with an Instantly subsequence.
Set the trigger to Meeting No-show and choose From Cal.com or Calendly.
Add the action Add to Instantly subsequence: No-show rebook subsequence.
Add the action Add labels: No-show.
Save the workflow and switch it to Active.

Before you start, connect Instantly, 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": "Rebook no-shows with an Instantly subsequence",
  "trigger_type": "meeting_no_show",
  "trigger_config": {},
  "action_configs": [
    {
      "action_type": "add_to_subsequence_instantly",
      "campaign_ids": [
        "camp-1"
      ],
      "subsequence_ids": [
        "sub-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: "Rebook no-shows with an Instantly subsequence". 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

Where do I find the subsequence id?

Pick it from the list in the action, or call GET /instantly/subsequences on the API.

Can I stop the subsequence when they rebook?

Yes. A Meeting Booked workflow with Remove from Instantly subsequence takes them out.

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.