Sync HeyReach LinkedIn replies to HubSpot when a lead is interested
When a HeyReach LinkedIn reply is labeled Interested, Master Inbox creates or updates the HubSpot contact and logs the LinkedIn conversation, so LinkedIn pipeline is visible in the CRM.

Why teams run it
LinkedIn wins are often missing from the CRM because nobody logs them.
Set it up in Master Inbox
- In Master Inbox, open Settings, then Workflows, and click Add a workflow.
- Name it Sync HeyReach LinkedIn replies to HubSpot when a lead is interested.
- Set the trigger to Add Label and choose Interested.
- Add a condition: Source is HeyReach.
- Add the action Sync to HubSpot: Upsert the contact and attach the LinkedIn conversation.
- Save the workflow and switch it to Active.
Before you start, connect HubSpot 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": "Sync HeyReach LinkedIn replies to HubSpot when a lead is interested",
"trigger_type": "add_label",
"trigger_config": {
"label_ids": [
176479
]
},
"action_configs": [
{
"action_type": "sync_to_hubspot"
}
]
}'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: "Sync HeyReach LinkedIn replies to HubSpot when a lead is interested". 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
Does the CRM need an email address?
It helps. Run contact enrichment on LinkedIn leads with no email before syncing.
Can Close or Attio get LinkedIn notes too?
Yes. Their integrations store LinkedIn messages as notes.
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 Revenue 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.
