Add LinkedIn repliers to an Instantly email campaign

When a LinkedIn reply from HeyReach is labeled Interested and the lead has an email, Master Inbox adds them to an Instantly campaign, so the follow-up runs on email too.

HeyReach

InstantlySDR managerFounderTeam plan

When

Add LabelInterested

Only if

Source is HeyReach

Only if

Email is not empty

Then

Add to Instantly campaignWarm LinkedIn leads campaign

Why teams run it

LinkedIn conversations go quiet, and email gives you a second way back in.

Set it up in Master Inbox

In Master Inbox, open Settings, then Workflows, and click Add a workflow.
Name it Add LinkedIn repliers to an Instantly email campaign.
Set the trigger to Add Label and choose Interested.
Add a condition: Source is HeyReach.
Add a condition: Email is not empty.
Add the action Add to Instantly campaign: Warm LinkedIn leads campaign.
Save the workflow and switch it to Active.

Before you start, connect Instantly 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": "Add LinkedIn repliers to an Instantly email campaign",
  "trigger_type": "add_label",
  "trigger_config": {
    "label_ids": [
      176479
    ]
  },
  "action_configs": [
    {
      "action_type": "add_to_sequence_instantly",
      "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 LinkedIn repliers to an Instantly email 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 if there is no email?

Run contact enrichment first, then the email condition passes on the next label change.

Will replies to the email join the LinkedIn thread?

Yes. Both channels sit on the same prospect 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.