Google Tag Manager
One clean web container with clear naming, no leftover tags, and access limited to the people who need it.
GA4, GTM, server-side, CAPI, Consent Mode v2
We rebuild your measurement so every sale is counted once, with the right value, and only with the consent you are allowed to rely on. Then we prove it with test orders and hand you the documentation.
Diagram of the path a purchase takes after implementation. The browser captures the purchase, the consent check lets it through only when the visitor has said yes, your own server on a first-party domain removes duplicates, and GA4, Google Ads and Meta each receive the purchase once with the same event ID.
What we do
One clean web container with clear naming, no leftover tags, and access limited to the people who need it.
view_item through purchase with correct values, currency, tax and shipping, plus refunds so revenue matches the store.
A server container on your own subdomain. Events arrive first-party, get cleaned, then go out to each platform.
A Meta CAPI setup where browser and server events share one event ID, so Meta counts each sale once and matches more of them to ads.
Hashed customer details sent with each conversion so Google Ads can attribute sales that cookies miss.
Defaults set to denied, tags that wait for a choice, and a banner that gives a real yes or no, built to the opt-in standard Quebec Law 25 expects.
How the data travels
The browser still captures the event. Your server decides what is allowed out, adds what the platforms need for matching, and sends each event with the same ID so nothing is counted twice.
purchase · $148.00event_id: 7f3a…Server-side tagging
Browser tags talk to Google and Meta directly, and ad blockers and short cookie lifetimes cut some of that traffic. A server container on your own subdomain receives one stream and forwards it, so you control what each platform gets. This is what Shopify server-side tracking means in practice for a store in Canada or the US, and the same setup works for WooCommerce.
Comparison of two tracking paths. Browser-only tags: events go straight from the browser to the platforms and some are lost to ad blockers and browser privacy limits. Server-side path: the browser sends events to your own server on a first-party subdomain, which adds hashed customer data, removes duplicates and forwards each event to GA4, Google Ads and Meta with the same event ID.
Consent Mode v2
With defaults set to denied, nothing that sets a cookie runs before the visitor answers. Granted consent sends the full event. A refusal sends only a cookieless signal, which Google uses to model conversions instead of losing them.
Diagram: three browser events (page view, add to cart, purchase) wait at a consent check whose default is denied. If the visitor grants consent, the full event with its event ID goes to GA4, Google Ads and Meta. If not, only a cookieless signal goes out and Google models the conversion.
How it runs
We confirm the event plan, the platforms involved and who approves what. Any audit findings become the task list.
GTM, GA4, server container, Conversions API, enhanced conversions and consent, built on a staging workspace first.
Test purchases with consent accepted and refused. We check each platform received what it should, once.
We publish the changes and hand over the QA log and documentation.
For 14 days we watch live data for gaps, duplicates and consent issues and fix what turns up. It ends with a check of platform numbers against the store.
Questions
Yes, the server container needs hosting, usually a small monthly cloud bill paid directly by you. We tell you the expected cost for your traffic before you commit.
We build the technical side to respect consent: tags wait for a choice and defaults are denied. The legal wording of your banner and privacy policy should be reviewed by your legal adviser. We flag what to check.
No. We map what each app sends before changing anything, then switch off duplicates in a controlled order so data never goes dark.
It is the usual starting point because it sets a fixed scope, and the audit fee is credited against the implementation price if you go ahead. If you already know what you need, we can quote from a short call instead.
Send us your store URL. We will run a free check on your tags, consent setup and conversion events and reply with what we find.