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.

How to Run a Holdout Test on a Klaviyo Flow

October 29, 2026

Quick AnswerTo run a holdout test on a Klaviyo flow, put a split under the trigger, send a random sample of profiles (say 20%) down a path with no messages,... Read more...

Ad Platform Over-Attribution on Shopify: Which Campaigns Claim Orders You'd Get Anyway

October 28, 2026

Quick AnswerAd platform over-attribution comes mostly from three campaign types: branded search, retargeting with view-through credit, and email opens. Each one reaches buyers who were already on their way to... Read more...

How to Track Buy with Prime Orders on a Shopify Store

October 27, 2026

Quick AnswerFilter your Orders list to the Buy with Prime tag and read the Channel column on one order. Neither Shopify nor Amazon documents that label, and it decides what... Read more...

How to Track Shopify Collabs Creator Sales in GA4 and Keep Your Ads From Claiming Them

October 27, 2026

Quick AnswerSet utm_source, utm_medium and utm_campaign in your Shopify Collabs invite program's URL Parameters field [2], test one creator link, then read each creator in Collabs and each program in... Read more...

How to Keep Shopify Exchanges From Skewing Your GA4 and Ad Platform Revenue

October 26, 2026

Quick AnswerShopify exchanges made in the admin stay on the original order, so WeltPixel Conversion Tracking sends no new purchase. Even swaps keep totals right. Refund a cheaper swap's difference... Read more...

How to Track Shopify Email Campaign Sales in GA4 and Your Ad Platforms Before Black Friday

October 26, 2026

Quick AnswerShopify Email, now called Shopify Messaging, adds utm_source=shopify_email, utm_medium=email and a utm_campaign to your links by default, so a click that keeps them lands in GA4's Email channel [2][4].... Read more...

How to Keep Cancelled High-Risk Orders Out of Your Shopify Ad Conversions Before Black Friday

October 23, 2026

Quick AnswerHold the card on manual capture and set WeltPixel Conversion Tracking's "When to send the Purchase event" to "When the order is paid" (Plus): an order cancelled before capture... Read more...

How to Import Meta and TikTok Ad Costs Into GA4 for a Shopify Store

October 23, 2026

Quick AnswerSince October 7, 2025, GA4 data import pulls Meta and TikTok costs itself, from Admin, Data import, Create import source, Campaign data. Before you connect, tag every paid ad... Read more...

How to Track Purchases That Start in Instagram, Facebook and TikTok In-App Browsers on Shopify

October 22, 2026

Quick AnswerPut UTMs on every Instagram, Facebook and TikTok ad URL, then test the switch on your own phone. When a shopper leaves the Facebook in-app browser for Safari or... Read more...

How to Keep Lost Chargebacks From Inflating Your Shopify Ad and GA4 Revenue

October 22, 2026

Quick AnswerA lost Shopify chargeback isn't recorded as a refund, so GA4, Google Ads and Meta all keep the sale. Correct it early. When you accept a chargeback, retract the... Read more...

How to Annotate Your Shopify Store's 2026 Tracking Changes in GA4 Before You Compare Black Friday

October 21, 2026

Quick AnswerSort the year's dates before you add a Google Analytics annotation. None of 2026's six headline tracking dates moves GA4 on every store: most move the Meta, Google Ads... Read more...

How to Build a Meta Custom Conversion for High-Value Orders on Shopify

October 21, 2026

Quick AnswerBuild the Facebook custom conversion on the Purchase event with a rule like value greater than 150, not on a thank-you page URL. Meta's own reference documents that high-value... Read more...