LW IT Solutions
Lukas Wojcik Technology I work with
GA4 gained a Source group dimension on 11 June 2026 that folds facebook, fb and m.facebook.com into one value, retroactively and without any tag change. It tidies the source list – and leaves channel grouping exactly where it was, because channels never read the raw source in the first place.
GA4 has had an AI Assistant channel since May. It reports every session that arrived carrying a referrer from a recognised assistant – which, by the available counts, is the smaller half of the traffic in question.
Technical guide on maximizing Meta CAPI Event Match Quality (EMQ) through server-side PII normalization, SHA-256 hashing, event_id deduplication, and GDPR compliance.
Technical guide on migrating Server-Side GTM from App Engine to GCP Cloud Run, configuring min/max instances, memory, concurrency, and avoiding cold starts.
A practical look at where Claude Code — as CLI, IDE extension, and Desktop app on Windows 11 — fits into a Google Tag Manager workflow: reading container exports, drafting tags, and catching mistakes before a human clicks publish.
A late-arriving User ID does not require a second config call: one gtag(‘set’) command hands the value to a Google tag that is already running, and every following event on the page carries it. The article covers scope precedence, the Tag Manager route including the gtagSet template API, and the parallel case of Consent Mode.
Technical guide on integrating offline CRM and POS conversions with GA4 sessions via server-side Measurement Protocol POST payloads, identity resolution, and delay handling.
Technical guide on reading solar inverter registers locally via Modbus TCP/RTU and automating load shedding with DIN-rail contactors during grid failures.
Since June 2026 a BigQuery Data Transfer Service backfill can overwrite complete history with empty results, and the Google Signals setting governs less than it once did.
Google Ads now deletes performance data after 37 months, and the line moves daily; here is the arithmetic, a resumable backfill job, and the numbers people are wrongly quoting.
About this blog
I want to explain technical ideas in a way you can follow and use for your own tasks. That means examples, diagrams and sources, and sometimes a small tool to try things out. You can read the blog in German, English and Polish.
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