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Google Tag Manager notes

Tag Manager is how measurement actually ships. Unification, dataLayer, server-side and consent without wrecking INP.

• Tag Manager

  Server-side GTM transformations for store catalogues

  Allow, augment and exclude event parameters in sGTM before Ads and CAPI tags fire. PII hygiene, preview checks and internal GA fields.

  10 October 2026

• Tag Manager

  Google tag gateway for production store catalogues

  Serve gtm.js from the shop domain with Google tag gateway. Same-origin paths, health checks, Magento and Woo routes, and why it is not server-side GTM.

  11 September 2026

• Tag Manager

  Shopify custom pixel for Google Tag Manager in 2026

  Load GTM in Shopify Customer Events: sandbox limits, checkout_completed mapping, consent, and debugging when Tag Assistant stays blank.

  1 September 2026

• Tag Manager

  Google tag and Tag Manager unification in 2026

  gtm init, container optimisation and one interface for Google tag plus GTM. What to review before you opt in.

  20 August 2026

• Tag Manager

  GTM visual tagging vs dataLayer events

  Point-and-click purchase tags cover simple buttons. Ecommerce still needs a dataLayer your theme owns.

  13 August 2026

• Tag Manager

  GTM container optimization and tag latency

  Opt in to optimized containers, drop extra gtag.js fetches, and keep GTM off the critical path until interaction.

  6 August 2026

• Tag Manager

  Server-side GTM for ecommerce stores

  sGTM on a first-party subdomain: ad blockers, consent, Facebook CAPI and the Cloud Run bill you should expect.

  30 July 2026

• Tag Manager

  GTM Consent Mode for Australian storefronts

  Australia is not the EEA, but EU visitors still hit AU stores. Default consent, Privacy Act caution and GTM.

  23 July 2026