Bring your network into Nynch

Updated May 2026

You'll learn how to: Pick the right import path for your network, and know what to expect from each one.

Time: 5 minutes to read. The imports themselves run in the background while you keep working.

Prereqs: You have a Nynch account. Where your contacts live now (LinkedIn, a CSV, an old CRM, a Gmail inbox) drives which path you'll use.

The four import paths

Path	Best when	Time	Article
CSV upload	You have a spreadsheet, an export from another CRM, or a LinkedIn Connections export.	5 min for upload, background for the import.	CSV import step by step
Chrome extension	You build relationships on LinkedIn and want one-click capture as you browse.	2 min per profile.	Capture LinkedIn contacts with the Chrome extension
Gmail history sync	Your real network is "everyone I've emailed" and you want Nynch to discover them automatically.	3 min to enable; 5-60 min for the import.	Connect Gmail to Nynch
Manual entry	You have a handful of priority contacts and want them right.	1 min per contact.	Manage your contacts and companies

Most users use two of these together. The most common combination is LinkedIn export CSV + Gmail history sync + Chrome extension installed for ongoing capture. Whatever you pick, you can always add the others later.

Decision shortcuts

You're brand new and want fastest time-to-value: download your LinkedIn Connections export (LinkedIn → Settings → Get a copy of your data → Connections) and run a CSV import with These are LinkedIn connections ticked and Hold in Rhythm Sort ticked. Then install the Chrome extension so future captures are one click.
You already have a CRM you're leaving: export contacts and (separately) companies, then CSV-import contacts first, companies second. Map fields carefully; Nynch's Smart Deduplication will merge any contact rows that share a company.
You're a solo founder living in Gmail: connect Gmail and turn on email-history import with a 12-month window. Nynch auto-creates contacts from every person you've exchanged at least one email with. Use this BEFORE running any other import so duplicate detection has the email-based identity to match against.
You're an executive whose network lives in your head: don't import anything. Open Nynch, install the Chrome extension, and capture the next 50 LinkedIn profiles you visit naturally. By week two you'll have a useful starter network.

What happens after import (any path)

Once contacts are in Nynch, three things kick off automatically:

Deduplication. Nynch checks every new contact against existing records on email and LinkedIn URL. Likely duplicates surface on the Possible Duplicates page or inline in the import wizard's Dupes stage.
Enrichment (if you chose a paid enrichment option during import). Nynch pulls company domain, job title, and other public profile data to fill in gaps.
Rhythm assignment. If you ticked "Hold in Rhythm Sort", new contacts queue up in the Bucket Game so you can triage them card-by-card. If you assigned them directly to a rhythm, they go straight in.

After the first batch lands, the Today screen's Flow tab starts surfacing the right people at the right time. Most users start seeing useful Today suggestions within 24 hours of their first real import.

What NOT to import

Generic mailing lists you bought. Nynch is a relationship system, not a cold-blast database. Mass-bought lists pollute your ICP scoring and ruin Reply Coach's draft quality. If you must use a cold list, keep it in a separate Campaign and don't merge it into your real network.
Email signatures of strangers. When Gmail history imports auto-create contacts from senders, you'll see one-off senders (newsletters, no-reply addresses, transactional emails). Use the Bucket Game or a bulk filter to triage these out before they pollute your view.
Your entire address book if it has thousands of stale entries. Better to import a curated 200-contact starter list than 5,000 entries you'll never touch. You can always import more later.

How to import again later

Imports are not one-time. You can re-run any path whenever you want:

CSV: Settings → Contacts → More menu (three dots) → Import CSV. Each import runs through the same 8-stage wizard with dedup.
LinkedIn: the Chrome extension keeps capturing as you browse; nothing else to enable.
Gmail history: Settings → Email & Calendar → Gmail card → Configure → re-run import for a wider date range.

The dedup logic ensures re-imports merge with existing records rather than creating duplicates.

If something goes wrong

Symptom: "I imported a CSV but contacts don't show up." → Fix: Open Settings → Contacts → More → Import History. Check the status of your import. If it shows "Completed", check the Contacts table's Owner filter (you might be looking at someone else's view).
Symptom: "Half my contacts are missing email addresses." → Fix: Run a CSV import with LinkedIn Enrichment selected on the Enrich stage. It uses 1 credit per contact and resolves missing fields.
Symptom: "I imported everyone twice." → Fix: Go to Possible Duplicates and bulk-merge from there. To prevent next time, always use Smart Deduplication on CSV import.
Symptom: "Gmail history found 4,000 contacts including people I don't know." → Fix: Use the Bucket Game to triage. Anyone you don't recognise can go into a "Discard" rhythm or be soft-deleted in bulk. The full Gmail history import is a starting point, not a final state.