Go to analytics.google.com → Admin → Property Settings → copy your Property ID (numbers only)

Open Google Cloud Console → Service Accounts → select your account → Keys tab → Add Key → JSON

In GA4 Admin → Property Access Management → add the service account email as Viewer

Go to Meta Business Manager → Accounts → Ad Accounts → copy your Ad Account ID (format: act_XXXXXXX)

In Business Settings → System Users → create or select a System User → Generate New Token → select your ad account → grant ads_read permission

Use a long-lived token (60-day) or set up a permanent System User token for uninterrupted data

Go to LinkedIn Campaign Manager → select your account → Settings → copy your Account ID

Open LinkedIn Developer Portal → your app → Auth tab → OAuth 2.0 → generate an access token with r_ads_reporting scope

Paste both below — tokens expire every 60 days; you can refresh anytime in Platform Settings

Everything else on your dashboard — ad spend, ROAS, clicks, conversions, traffic — works without this. Nothing gets added to your website.

Turning this on is the only feature that needs a small tracking snippet on your site. We'll give you the exact code — you (or your web person) paste it in once, and company-level visitor data starts flowing.

You can enable it anytime later from Client Campaigns — no rush, and no obligation to decide now.