The WeltPixel Blog

Server-side tracking, e-commerce analytics, and development insights for Magento and Shopify — from the team behind 25+ premium extensions.

The WeltPixel Blog

Server-side tracking, e-commerce analytics, and development insights for Magento and Shopify — from the team behind 25+ premium extensions.

Which Google Ads Conversion Action Should Count as Primary on Shopify?

September 24, 2026

Quick AnswerThe purchase action your server-side app uploads to, and only that one. Primary actions report in the Conversions column and feed bidding, while secondary actions are "for observation only"... Read more...

How to Reconcile Klaviyo Attributed Revenue with GA4 and Shopify

September 24, 2026

Quick AnswerKlaviyo credits email revenue on opens as well as clicks, with a default 5-day lookback for both on new accounts [1]. GA4's email channel needs a tagged click, and... Read more...

How to Measure Checkout Drop-Off on Shopify When You Can't Script the Checkout

September 23, 2026

Quick AnswerShopify's customer events bus publishes six checkout-shaped standard events, from checkout_started through checkout_completed, plus alert_displayed for the alerts a shopper sees [1]. Shopify's docs state no plan restriction for... Read more...

How to Handle Refunds and Cancellations in Ad Platform Reporting on Shopify

September 23, 2026

Quick AnswerTwo ad-side destinations accept a reversal. GA4 has a refund event that takes a transaction ID, a value and a currency [1], and Google Ads has conversion adjustments, where... Read more...

Does a Conversion Tracking App Slow Down Your Shopify Store?

September 22, 2026

Quick AnswerNot by much, and there is a published ceiling on how much it can. "Your app must not reduce the storefront Lighthouse performance score by more than ten points"... Read more...

How to Measure Incremental Conversions for Meta Ads on Shopify

September 22, 2026

Quick AnswerRun a holdout yourself, because Meta's lift studies run through a representative rather than as a self-serve product [1]. Detecting a 20% lift at 95% confidence and 80% power... Read more...

How to Join GA4 BigQuery Export Data to Shopify Orders

September 21, 2026

Quick AnswerJoin on the numeric Shopify order id. GA4's purchase row carries it in ecommerce.transaction_id, while Shopify's own BigQuery connector transfers GraphQL resources, so the same order arrives as gid://shopify/Order/1234567890... Read more...

UTM Tagging Rules That Keep GA4, Shopify and Ad Platforms Agreeing

September 21, 2026

Quick AnswerTag every link with lowercase utm_source, utm_medium and utm_campaign, and make the medium match GA4's paid regex ^(.*cp.*|ppc|retargeting|paid.*)$ [3]. Shopify counts a visit as marketing only when utm_campaign is... Read more...

Does Switching to Server-Side Tracking Reset Meta's Learning Phase?

September 18, 2026

Quick AnswerNo. Adding a server-side path to the same Meta dataset is not an ad set edit, so nothing in the learning phase resets. Meta measures learning at the ad... Read more...

How to Test Server-Side Conversion Events Without Polluting Live Reports

September 18, 2026

Quick AnswerTest on a second pixel instance pointed at a test pixel, never by flipping test mode on your live one. Only two platforms verifiably isolate test traffic: GA4's debug... Read more...

Which Event Should a Low-Volume Shopify Store Optimize For?

September 17, 2026

Quick AnswerOptimize on purchase only if the ad set clears the platform's own threshold. Meta's learning period stabilizes at a minimum of 50 events over 7 days, measured per ad... Read more...

Meta, Google Ads and GA4 Show Three Different Purchase Counts: The Discrepancy Hub

September 17, 2026

Quick AnswerCompare all three against your Shopify order count, not against each other. Fourteen causes produce the gap, and the first four are comparison-basis mistakes: day boundary, click date versus... Read more...