Add a positive email replier to a HeyReach LinkedIn campaign
When an email reply is labeled Interested, Master Inbox adds the lead to a HeyReach campaign that sends a connection request, so the conversation continues on LinkedIn as well as email.

Why teams run it
Multichannel follow-up without exporting a list and uploading it to HeyReach.
Set it up in Master Inbox
- In Master Inbox, open Settings, then Workflows, and click Add a workflow.
- Name it Add a positive email replier to a HeyReach LinkedIn campaign.
- Set the trigger to Add Label and choose Interested.
- Add the action Add to HeyReach campaign: Connection request campaign for warm email leads.
- Save the workflow and switch it to Active.
Before you start, connect HeyReach 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": "Add a positive email replier to a HeyReach LinkedIn campaign",
"trigger_type": "add_label",
"trigger_config": {
"label_ids": [
176479
]
},
"action_configs": [
{
"action_type": "add_to_sequence_heyreach",
"campaign_ids": [
"camp-1"
]
}
]
}'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: "Add a positive email replier to a HeyReach LinkedIn campaign". 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
What does HeyReach need?
The lead needs a LinkedIn URL, from your sequencer data or enrichment.
Will replies on LinkedIn land in the same thread?
Yes. HeyReach replies join the prospect's conversation in Master Inbox.
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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Run this on your own inboxes
Free 7-day POC. Unlimited users on every plan.
