How Signal sends Meta the customer behind every event

No. Signal changes who sends the server-side events, not the pixel they go to. Your pixel ID, audiences and campaign history stay as they are, and campaigns keep running through the switch. If you stop using Signal, you turn your old sender back on.

No. During setup we switch off every other tool sending the same events. That’s usually Shopify’s Facebook & Instagram data sharing or Meta’s Conversions API Gateway, sometimes Elevar, Stape or Google Tag Manager tags. Every Signal event carries the same event ID as the browser pixel’s copy, so Meta keeps one.

Yes. Most brands start with Klaviyo, where the extra abandonment emails are easy to count. Signal can also run in the background on your own traffic, so you can compare match rates before it sends anything to Meta. Meta doesn’t deduplicate across pixels, so we plan any second-pixel test with you.

Signal’s health & wellness setup sends server-side events to a new pixel from a neutral data domain, with health terms stripped, so you can optimize on standard Purchase events again. Meta won’t move an existing ad set to a new pixel, so your campaigns are duplicated onto it. We can’t lift a flag. What we change is the data Meta receives.

No. Meta restricts health data so it doesn’t end up holding medical profiles of your customers. Signal removes that data before any event is sent, which is the data minimization Meta asks for. Your ads and landing pages still have to meet Meta’s ad policies on their own.

No. Other brands never see your customers, and you never see theirs. Emails and phone numbers are hashed before they reach Meta, and you choose whether Signal follows your cookie banner.

No. Signal replaces the tool that sends events to your ad platforms, such as Sonar, Elevar or Shopify’s Facebook & Instagram app. Triple Whale or Northbeam can keep running for reporting. If you want reporting from us as well, Upstack Attribution reads the same matched customers.

No. A shopper who comes back on a new device, network and browser, with nothing tying them to an earlier visit, can’t be linked. Signal links more visits than browser cookies can because it checks each one against your first-party data and our device graph. We set it up on your own traffic so you can compare match quality before and after.

Both. Meta uses your page views and add-to-carts to find more people like the shoppers moving toward a purchase, so filling in those events helps prospecting as well as retargeting. The new-customer columns in Ads Manager show which ads bring in first orders.

Not on a standard Shopify store. You install the Shopify app and connect your ad platforms on a call with our team, and most brands are live in under 20 minutes. A headless or non-Shopify store needs a developer to add our script, and we send the instructions.

Signal works with your own customers’ data and our device graph. Audience is a separate add-on that identifies shoppers you’ve never met, using opt-in partner data.