Send HeyReach LinkedIn replies to Slack with a link to the exact thread

When a HeyReach LinkedIn reply is labeled positive, Master Inbox posts it to Slack with the prospect, their LinkedIn URL, the message and a link that opens the exact conversation.

HeyReach

SlackRepSDR managerTeam plan

When

Incoming MessageHeyReach channels

Only if

Label sentiment is positive

Then

Notify in SlackPost the message, LinkedIn URL and thread link to #linkedin-replies

Why teams run it

LinkedIn tool alerts often do not link to the conversation, so reps waste time finding it across sender accounts.

Set it up in Master Inbox

In Master Inbox, open Settings, then Workflows, and click Add a workflow.
Name it Send HeyReach LinkedIn replies to Slack with a link to the exact thread.
Set the trigger to Incoming Message and choose HeyReach channels.
Add a condition: Label sentiment is positive.
Add the action Notify in Slack: Post the message, LinkedIn URL and thread link to #linkedin-replies.
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": "Send HeyReach LinkedIn replies to Slack with a link to the exact thread",
  "trigger_type": "incoming_message",
  "trigger_config": {
    "channel_ids": [
      "-1"
    ]
  },
  "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: "Send HeyReach LinkedIn replies to Slack with a link to the exact thread". 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

Can reps reply from Slack?

Yes. The Slack card can show the AI draft with Accept and Send, and label buttons, for LinkedIn threads too.

Do new HeyReach sender accounts need setup?

Add new LinkedIn channels to the trigger so their replies are included.

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.