A lot of early relationship-building happens on LinkedIn and then never makes it into the CRM. Zero's Chrome extension closes that gap: your LinkedIn conversations sync in automatically, appearing on the contact's Activity tab and under the LinkedIn tab in Messages.
How does it work
The "LinkedIn connections" and "Last activity" properties show connection status and the latest message:
And you can save contacts and companies to Zero without leaving LinkedIn:
How to install
The extension is set up in Settings → Connections → Connected Apps → LinkedIn.
Add the Zero Chrome Extension to your Chrome or Chromium-based browser, like Arc or Brave
LinkedIn account settings
With the extension connected, the LinkedIn tab holds three settings:
Auto-contact creation — Add everyone turns your connections into contacts (without duplicating the ones already there), or Disabled.
Message syncing — Enabled or Disabled for this account.
Message visibility — whether newly synced threads are Public to the workspace or Private to you. Existing threads keep what they have.
The same tab can delete all synced messages, all synced connections, or the LinkedIn account itself.
LinkedIn Bulk Messaging
You can draft LinkedIn messages in bulk in Zero, but they are sent from LinkedIn itself by the extension. Four things follow from that:
Only 1st-degree connections can be messaged, and the contact needs valid LinkedIn data in Zero.
Drafts are created in Zero, sent from LinkedIn.
You start the send yourself, from the LinkedIn tab.
Keep that tab open while they go out.
Creating draft LinkedIn messages
Open a contacts list.
Select contacts and click the Send messages icon on the bottom bar.
In Compose message, choose LinkedIn at the top. Pick a Zero account under From and write your message template.
Click contacts on the left to preview personalization.
Click Add to Chrome Extension.
⚠️ Contacts must be 1st-degree connections of the sender
The Chrome Extension must be installed with fully synced connections.
Sending the drafts
Open LinkedIn and click the Zero logo (bottom-left).
The panel shows how many messages ready to be sent you have.
Click the drafts card to open the list. Review or edit each draft, then Send it on its own or Send all.
Keep the tab open — do not refresh, navigate away, or click links while a run is going.
Pause stops a run, taking a few seconds if a message is mid-send.
Closing the tab or browser abruptly is safe from duplicates — nothing is re-sent on restart — but the message in flight at that moment may not have been delivered, and there is no way to confirm either way.
Drafts that fail are marked with an error in the list, and you can retry them from there.
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