Shopify App: Collect Email Newsletter User IDs

The Shopify app can capture newsletter user IDs when a shopper clicks a campaign link that includes Relewise Recommendations. When the shopper lands on your store, the app reads the email provider's ID from the URL and forwards it to Relewise via trackUserUpdate.

The app currently supports the following email providers:

• Klaviyo: expects a klaviyo_id query string parameter with a 6- or 26-character ID. See Ensuring a Klaviyo ID.
• Voyado: expects a voyado_user_id query string parameter with a 22-character ID.

If you want to toggle the newsletter user ID collection, open App Embeds -> Collect email provider user ID