CHANGELOG

Everything new in GTM Kit

Releases for GTM Kit and GTM Kit Premium, newest first.

Premium

Fixed

  • Removed a leftover test pop-up titled "GTM Kit Premium feature launch" that appeared once for every administrator opening a GTM Kit admin page.
  • On sites with a persistent object cache such as Redis, GTM Kit Premium no longer re-runs its update routine on every admin page load when the cache still holds the previous version number. It also no longer clears the server's shared PHP code cache before updating.
Premium

Fixed

  • With the event deferral queue holding the purchase event, the browser now waits for the queue to release it before confirming the purchase. Stores sending the server-side purchase only when the browser does not confirm it no longer receive every order twice, and a queue timeout raised in the settings is still covered.
  • On cached pages with WP Rocket's Delay JavaScript execution turned on, the event deferral queue only started once the visitor interacted with the page, so the ecommerce events it should hold until consent is granted were sent straight away. The queue is now exempt from that delay and holds those events again.

Changed

  • The webhook log now states why a server-side order body carries no tracking cookies (none captured, or stripped by consent), and the order screen lists which tracking cookies were captured.
Premium

Find out about what's new in our release post.

Added

  • Orders can now report their gross profit, so you can bid on margin instead of turnover. Profit is worked out from your WooCommerce cost prices plus a cost model you configure (payment fees, shipping, packaging and handling, and a default margin for products without a cost price), stored on the order when it is placed, and sent with the server-side event as gross_profit; your container decides what to do with it, so point a Google Ads conversion tag or a GA4 custom metric at that field before anything changes in your bidding. It stays out of the page source unless you switch on the browser option, every cost field starts at zero rather than a guessed rate, and the settings screen shows how much of your catalogue has a cost price so an incomplete figure is visible instead of silent.
  • New read-only REST endpoint returns an order's stored profit, for headless storefronts that need the same figure the server-side event reports.
  • Purchases now report whether they came from a new or a returning customer, on the browser purchase event and on every server-side order and refund event. The answer is worked out once when the order is placed and stored on the order, so a resent or retried event always says the same thing as the original. To feed a Google Ads new-customer-acquisition goal, enable new customer reporting on your conversion tag and set its source to event data; it ships switched off because until now the plugin did not send the data, and note that GTM Kit sends the new-versus-returning flag only, not a customer lifetime value.

Fixed

  • Orders and form entries now record the page a visitor actually arrived on, and the site that sent them, instead of being overwritten with the last page they viewed before converting. Server-side events report the entry page as the conversion's page location, and a visitor who arrived directly is no longer recorded as having been referred by another page on your own site. When a new campaign brings someone back, the entry page and referrer are recorded afresh, so they always describe the visit the campaign belongs to.
  • Event names such as purchase and add_to_cart are now marked as literal values in the settings screens, so translations can no longer rename them. On translated sites some of these names were being translated, which made the settings disagree with the events GTM Kit actually sends.

Changed

  • The new_customer value now follows GTM Kit's own definition, matching a shopper on their account or, for guests, on the billing email they checked out with, and counting only orders that were actually paid. It previously came from WooCommerce Analytics, which reports every customer as new on stores that have never run the Analytics import. Sites using new-customer bidding may see the segment shift once after updating.
  • Recovered purchases (the server-side purchase sent when the browser did not confirm the event) are attributed to the visit that produced them, including its source and campaign, when the server container's Google Analytics client has "Migrate from JavaScript Managed Client ID" enabled. Server containers generated by the Template Assistant before 2 September 2026 shipped with it disabled, so their recovered purchases show a traffic source of (not set). Re-import your server container template from the Template Assistant, or open the Google Analytics client in your server container, expand More Settings and tick the box. This applies whichever advertising platform the container was generated for.
  • Licence checking and integration start-up were consolidated into one place, so every feature answers the same question the same way and each integration states for itself what it needs to run. No change to what any site does today.

Read the release post →

Premium

Find out about what's new in our release post.

Added

  • New setting adds the customer's hashed email address and phone number to server-side events, so ad platforms match conversions more accurately. Off by default.
  • The server-side purchase event can now be sent only when the browser did not confirm the purchase reached Google Tag Manager, so a healthy checkout is counted once.

Fixed

  • Conversions recovered by the webhook keep the traffic source of the visit they belong to. Re-import your server container template from the Template Assistant after updating.
  • Admin-created orders and background subscription renewals no longer pick up another customer's tracking data.
  • Server-side events are recorded as the visitor who was browsing, instead of a new person each time.
  • A slow tagging server no longer causes purchases to be counted twice.
  • Server-side events carry the visitor's Google Analytics session details again.
  • The Template Assistant shows the configuration fields for premium services such as TikTok again.

Changed

  • The Preview test-send confirmation now tells you that live orders stay out of Preview until you switch that option on.
  • Requires GTM Kit 2.18.1 or later, and will not run until GTM Kit is updated.
  • Minimum versions are now WordPress 6.9 and WooCommerce 10.3. Tested with WooCommerce 11.0.
  • The flat Event Data setting is renamed “Flat GA4 Event Data and shared purchase event ID”. The shared ID deduplicates for Meta, TikTok, Reddit, Snap and Pinterest, but not for Google Analytics 4.
  • The test suite now also covers the oldest supported WordPress and WooCommerce versions, and a stale build dependency was removed.

Read the release post →

Premium

Find out about what's new in our release post.

Added

  • New "Server-side GA4 measurement ID" setting routes each site's webhook events to its own GA4 property when several sites share one server GTM container. The destination travels with each webhook, so adding a site needs no container edit, and a site with the field empty keeps using the measurement ID configured in the container itself. Requires re-importing the updated server container template once.
  • Server-side webhook events now also carry their GA4 ecommerce, cookie, attribution and consent values as flat top-level fields, so standard GA4, Meta CAPI and Google Ads tags in your server container pick them up through default parameter inheritance, with no per-parameter mapping variable and no GTM template to import. The original nested objects are kept, so nothing in your container breaks.
  • Purchases now carry a stable, transaction-based event_id on both the browser event and the server-side webhook. When the same order reaches a shared server container from both the browser and the webhook, a destination that deduplicates on event_id treats the two as one event, and a retried webhook stays idempotent. (Corrected after publication: this entry originally said your GA4 tag would merge the two copies. Later testing established that it does not, even when every identifier matches, so send the purchase to Google Analytics 4 from one side only. The shared ID is the deduplication key for Meta, TikTok, Reddit, Snap and Pinterest.)
  • New setting to turn the flat fields and the shared purchase event ID on or off, plus an optional event_id prefix (defaults to your site name) so several stores can safely share one server container.
  • While the sGTM Preview/Debug session is active, server-side webhook events carry GA4's debug signal (the same one browser debug traffic carries), scoped to the Preview session and never marking normal traffic. Note that GA4's DebugView does not reliably list purely server-originated events; verify webhook delivery in the server container's Preview panel and in GA4 Realtime.
Premium

Find out about what's new in our release post.

Added

  • New "Send test webhook to sGTM Preview" tool (Setup → Environment). Send a server-side event to your server container with the Preview token attached, so it appears in the container's Preview/Debug panel on demand, without placing a real order. Pick any event type, send a synthetic sample or replay a real order, and read the container's response inline. An optional, self-expiring developer toggle can also show live orders in Preview; it disarms automatically when the token expires, so it can never break live tracking.
  • New gtmkit_webhook_request_args filter lets developers add headers (such as the sGTM Preview token) or otherwise reshape outgoing server-side webhook requests, without patching core.

Fixed

  • Generating a GTM container from the Template Assistant with a premium service selected (such as Server-Side Webhooks – GA4) now works. The request is sent to the licensed template endpoint with your license key, so the premium service is recognised as part of your plan instead of being rejected with a generic error.

Read the release post →

Premium

Added

  • Event Deferral now works when your Consent Management Platform drives Google Consent Mode itself (via the WP Consent API), without turning on GTM Kit's own Consent Mode. Deferred ecommerce events fire the moment a visitor accepts consent, with no duplicate Consent Mode signals and no changes to your GTM container.

Fixed

  • With a Consent Management Platform that publishes through the WP Consent API, deferred ecommerce events now fire the instant a visitor accepts the consent banner, instead of waiting out the fallback timeout (or being dropped). This closes the gap where a first-time visitor's add to cart, checkout or purchase could be lost while the page waited for the timeout.
Premium

Added

  • The Debug log now records every server-side webhook GTM Kit sends, including the full payload and the HTTP status your tagging server returned, not just the purchase event. You can read the exact request for purchases, order-status changes, refunds and subscription events in WooCommerce → Status → Logs.
  • The "Send webhooks from a background queue" setting now links to WordPress' Scheduled Actions screen, filtered to GTM Kit's queued dispatches, so you can inspect pending, completed and failed webhook jobs.

Fixed

  • Premium templates no longer fail to download when the stored licence key goes missing while the licence still reads as valid. The plugin now treats a missing key as not licensed, so the templates page prompts you to re-activate instead of producing a broken request.
  • Licence activation now confirms the key was actually saved and shows a clear message when a server caching layer or hosting restriction prevents it, instead of appearing to activate and then reverting on the next page load.
  • The License screen now shows the first characters of your license key behind the mask, so you can recognise which key is active. Previously the whole key was masked.

Changed

  • GTM Kit Premium now requires GTM Kit core 2.16.0 or later. The redesigned License screen and the new Scheduled Actions link rely on capabilities added in core 2.16.0.
  • License details on the License screen (key, status and renewal date) are now added through GTM Kit's gtmkit_settings filter instead of rewriting the enqueued settings script, and the unused admin pages that the redesigned settings interface replaced have been removed.