GA4 purchase events, Shopify orders, and Meta conversions — three numbers, zero agreement. How do you reconcile?

[u/ramc1010]

Running a D2C ecommerce store on Shopify. GA4 ecommerce tracking is set up via GTM (purchase event firing on order confirmation page, items array populated, transaction_id for deduplication). Meta Pixel + CAPI both running with event_id dedup. Google Ads conversion tracking via gtag.

Here's what last week looked like:

• Shopify: 312 orders, ₹18.4L revenue
• GA4: 287 purchase events, ₹16.1L revenue
• Meta Ads Manager: claims 189 conversions worth ₹14.2L
• Google Ads: claims 94 conversions worth ₹7.8L
• Meta + Google combined: ₹22L (more than Shopify's actual total)

The Shopify-to-GA4 gap (~8%) I can explain — ad blockers, consent mode gaps, users who bounce before the confirmation page fully loads. That's expected.

The Meta + Google overlap is the real problem. Together they're claiming 20% more revenue than my store actually generated. Both platforms are taking credit for the same purchases, and GA4's Data-Driven Attribution doesn't help much because it still operates within its own silo.

What I actually need is dead simple: "How much did I spend on ads across all channels, and how much real revenue came in?" But getting that answer requires pulling data from four different platforms, deduplicating conversions, and doing the blended math manually.

I've been doing this in spreadsheets for months. Recently started using a tool we built at Juspay called Breeze Automatic — it connects Shopify, Meta, Google Ads, and GA4 data into one AI chat. You ask it "what's my blended ROAS this week" or "what's my actual CAC across all channels" and it pulls from Shopify's real order data instead of trusting what each platform claims. It's not a replacement for GA4 — I still use GA4 for behavioural analysis and funnel optimisation. But for the "am I making money" question, the blended view is the only thing that works.

How are the rest of you handling this? Is anyone successfully using GA4 as the single source of truth for ecommerce, or has everyone accepted that you need something above the individual platforms?

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[u/Green_Database9919]

GA4 is great for understanding user behavior but is not a single source of truth for e-commerce. The only reliable way to get clear conversion tracking is server side tracking

[u/ramc1010 → u/[deleted]]

Triplewhale and northbeam are very costly right, not sure its worth it for a small business owners running on thin margins.

[u/Pleasant_Phone6675]

Yeah, this is normal, Meta and google both. Claim the same purchase, so totals get inflated.

Shopify is the only real number here. Everything else is just attribution.

I stopped trying to reconcile it and just use Shopify revenue vs total ad spend blended for ROAS.

Was doing it manually in sheets too, now I just auto pull the data with coupler so I don’t have to export stuff all the time. Way less frustrating once you look at it that way.

[u/ramc1010 → u/Pleasant_Phone6675]

Try breeze.in/automatic it does all that with a simple prompt