Shopify and Google Tag Manager

Google Tag Manager (GTM) runs in the storefront browser. Use it for tags that must execute client-side; use Vendo’s Shopify source for durable server-side commerce records and downstream delivery.

Before you start

• Install GTM on the active Shopify theme or headless storefront.
• Connect Shopify to Vendo and enable the supported storefront tracking path.
• Decide which events GTM owns and which events Vendo owns to avoid double sending.

Recommended ownership

Configure GTM

1. Add the GTM container to the storefront using the Shopify-supported method for your theme or headless framework.
2. Configure consent before marketing tags fire.
3. Create triggers only for browser events GTM should own.
4. Reuse the same order and event identifiers when a browser event has a server-side counterpart.
5. Publish to a test environment before production.

Avoid duplicate events

Do not send the same event independently from GTM and Vendo without a shared deduplication key. For conversion platforms, keep the same event name, event ID, order ID, and event time across browser and server copies.

Verify

1. Use GTM Preview mode to confirm the expected tags fire once.
2. Complete a test storefront flow.
3. Confirm Vendo receives the expected Shopify events.
4. Check each downstream destination for duplicate browser/server copies.
5. Validate consent behavior in accepted, rejected, and undecided states.

Troubleshooting

Related

• Shopify integration features
• Shopify custom events
• Shopify data model
• Signal recovery