Escalate an unanswered interested reply in Slack when its reminder falls due
If a reminder on an Interested lead comes due and the prospect still has the last word, Master Inbox posts an escalation to Slack so a manager can step in before the lead goes cold.

Why teams run it
Protects speed to lead: positives cannot sit unanswered without someone noticing.
Set it up in Master Inbox
- In Master Inbox, open Settings, then Workflows, and click Add a workflow.
- Name it Escalate an unanswered interested reply in Slack when its reminder falls due.
- Set the trigger to Due Reminder and choose Reminder set when the lead was labeled Interested.
- Add a condition: Label is Interested.
- Add a condition: Last message is from the prospect.
- Add the action Notify in Slack: Post to #sales-managers with the prospect, waiting time 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. This workflow also uses conditions: add them under trigger_config.conditions, as shown on the conditions page.
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": "Escalate an unanswered interested reply in Slack when its reminder falls due",
"trigger_type": "due_reminder",
"trigger_config": {},
"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: "Escalate an unanswered interested reply in Slack when its reminder falls due". 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
How do I set the reminder in the first place?
Pair it with a workflow on the Interested label that sets a reminder, for example 8, 24 or 48 hours later.
What if the rep already answered?
The last message condition fails, so no escalation is posted.
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
Related workflows
Get a Slack alert when a QuickMail reply asks about pricing
When a QuickMail reply contains words like pricing, cost or quote, Master Inbox posts it to a deal desk channel in Slack so a senior rep answers...

AlertsSend Slack reply alerts on weekdays only
Positive reply alerts post to Slack Monday to Friday in your workspace time zone. Weekend replies wait in the inbox instead of pinging the team on a...
AlertsGet a Slack alert when someone from a target account replies
When a reply comes from a domain on your target account list, Master Inbox posts it to an ABM channel in Slack, whatever the label, so the account...
AlertsFlag engaged conversations in Slack after the third prospect reply
When a prospect has replied three or more times in a thread, Master Inbox posts the conversation to Slack so a manager can see which deals are in...

Run this on your own inboxes
Free 7-day POC. Unlimited users on every plan.
