Google Ads · eCommerce Tracking & Attribution

eCommerce tracking that feeds Google's bidding real revenue, not guesses

Smart Bidding is only as smart as the data it's fed. Your GTM container gets rebuilt, GA4 purchase events get wired with true order values, and Enhanced Conversions runs on your first-party data. It's the data layer of MaxV™, and it's what tROAS bids on.

Get my tracking quote

Engagement model: Flat retainer · no contract
Accreditation: Google Partner — current
Quoted per: Per setup

$1.2M

Google Ads managed / month

How MaxV™ works here

The Problem

When GA4 and Google Ads don't agree, your bids pay for it

Google's tROAS bidding sets bids from the conversion values it receives, so inaccurate tracking directly misallocates your ad spend.

Purchase counts in GA4 and Google Ads that never match

The algorithm raises bids on products your reports overstate and starves the ones they undercount — and the wasted spend never shows up anywhere.

Order values missing from some sales, doubled on others

Incorrect order values in your events mean tROAS is optimising against figures that don't reflect what your store actually earned.

Conversions silently dropped by browser privacy limits

Browser restrictions strip attribution before it reaches Google Ads, so sales vanish from your reports without any visible signal that they're gone.

How it works

Scope of Work

A GTM container where every tag is accounted for

Your container gets audited, rebuilt and documented with naming conventions, so duplicate and orphaned tags stop inflating or dropping your conversions.

Purchase events that carry your real order values

The full GA4 ecommerce schema, from view_item through purchase, fires with true revenue on every order — verified against your store's order records.

Conversions that privacy limits dropped come back

Enhanced Conversions sends hashed first-party customer data from your checkout to Google Ads. Diagnostics confirm it is matching, not just installed.

One number you can trust for bidding decisions

We document why your two reports differ and name the figure tROAS should bid on. This reconciliation step is part of every quoted engagement.

Proof

Clean Data First, Then the Results: Hitchweb and Beautysense

Beautysense

+300%

ROAS up over 300% in a beauty and cosmetics eCommerce account running this data layer. Named with permission.

Hitchweb

+25%

Revenue up 25% year over year for this auto parts eCommerce account on the same GTM, GA4 and Enhanced Conversions foundation.

The difference

What gets built, verified and reconciled

Criterion

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Typical agency

GTM container audited, rebuilt and documented vs. tags left unreviewed and stacking over time

✓

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GA4 purchase events verified against store order records vs. placeholder values or missing revenue fields

✓

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Enhanced Conversions confirmed matching via diagnostics vs. installed but never validated

✓

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Attribution gap documented and bidding figure named vs. two mismatched reports left unexplained

✓

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tROAS bids on reconciled real revenue vs. Smart Bidding optimising on inaccurate conversion values

✓

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Testimonials

Proof · Clients Who Stayed, With No Contract Holding Them

“IMG Media has supported us for over 10 years. Impeccable service, great integrity, always listening and always ready to act.”

Robert Ste-Marie · Client for over 10 years, on a no-contract retainer — Google review, 5 stars

FAQ

Before You Ask For a Quote

What does a tracking rebuild cost?+

A flat monthly retainer with no contract. The quote depends on your platform and current setup — a clean Shopify store is a different job than a custom checkout with years of legacy tags.

Why do GA4 and Google Ads report different conversion numbers?+

They count differently, not because one is lying. Different attribution models, conversion windows, and browser privacy limits mean they will never match exactly. The rebuild reconciles them and names the figure tROAS should trust.

What is Enhanced Conversions, and is it a privacy risk?+

It sends hashed first-party checkout data to Google Ads to recover dropped conversions. The data is hashed before it leaves your site — Google receives an irreversible code, not the raw value. It is Google's own product.

Do I need my developer involved?+

Usually only briefly, sometimes not at all. Most work happens inside GTM. If your platform needs a data layer snippet at checkout, your developer gets the exact snippet and exactly where it goes.

Will fixing my tracking alone improve ROAS?+

Not by itself. It makes target ROAS bid on true revenue instead of guesses, removing a source of wasted spend invisible in broken reports. The campaigns still do the work on top of that foundation.

Are you actually certified on Google's stack?+

Yes. IMG Media is a current Google Partner agency, working hands-on in GTM, GA4, Enhanced Conversions and target ROAS bidding.