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7 Google Ads Mistakes Killing Your Wix Ecommerce ROAS

The average wix ecommerce store wastes 31% of their Google Ads budget on these preventable mistakes. Here's what to avoid—and how to fix it.

Wix Ecommerce-Specific Google Ads Problems

Mistake #1: Incomplete Conversion Tracking

Wix's native tracking often misses enhanced conversions, cart data, and cross-device attribution. You're flying blind on what's actually working.

$800-2,500/month in misattributed conversionsWix Ecommerce-specific

Example: Campaign showing 2x ROAS but actual tracked revenue 40% lower

Mistake #2: Basic Google Shopping Integration

Wix's Google Shopping app works but lacks advanced features like custom labels, supplemental feeds, and automatic inventory sync for all variants.

25-35% lower impression share vs. Shopify storesWix Ecommerce-specific

Example: Products disapproved due to variant sync issues

Mistake #3: Limited Checkout Customization

Wix checkout has fewer payment options and less conversion optimization compared to Shopify. High-intent traffic drops off at payment.

$1,200-3,800/month in lost conversionsWix Ecommerce-specific

Example: 32% checkout abandonment vs 24% industry average

More Ecommerce Google Ads Mistakes

4

Running All Products in One PMax Asset Group

With a single asset group, Google optimizes for aggregate ROAS by heavily favoring your top 5-10 products. The rest of your catalog gets almost no impressions. Worse, low-margin products drag down profitability while appearing successful in aggregate.

$1380 wasted on non-performing products

Fix: Segment products by performance tier: Winners (scale), Potentials (test), Underperformers (cut or fix). Create separate asset groups for each.

5

No Brand Exclusions in Performance Max

PMax claims credit for brand searches that would've cost $0.30 through a dedicated brand campaign. Without exclusions, you're paying 3-5x more for customers already looking for you.

30% of PMax 'conversions' may be cannibalized brand traffic

Fix: Add brand exclusions to PMax and run a separate Brand Search campaign with exact match keywords.

6

Poor Product Feed Quality

Missing GTINs, generic titles, no custom labels, and missing sale prices hurt your Shopping ad performance. Variant sync failures

35% lost impression share

Fix: Use Wix's Google Shopping integration but verify sync regularly

7

Ignoring New vs Returning Customer Split

Your 5x ROAS might look great until you realize 70% of sales are repeat customers who would've bought anyway. You're paying to acquire customers you already have.

Overstated true acquisition ROAS by 2-3x

Fix: Segment reporting by new vs returning customers. Set up customer match lists and analyze true CAC.

Campaign Types to Avoid for Wix Ecommerce

Not all campaign types work for wix ecommerce stores. Here's what to skip:

PMax without proper tracking

Tracking gaps hurt optimization

Broad match keywords

Limited data makes broad risky

Display prospecting

Platform limitations hurt performance

What to Do Instead

Follow these best practices to maximize your Wix Ecommerce Google Ads performance:

Standard Shopping

Budget: 40-50% • Target ROAS: 3-4.5x

Branded Search

Budget: 20-25% • Target ROAS: 6-12x

Non-Brand Search

Budget: 15-20% • Target ROAS: 2-3.5x

Remarketing

Budget: 15-20% • Target ROAS: 4-7x

How Many of These Mistakes Are You Making?

Our audit scans your Wix Ecommerce Google Ads account and identifies exactly which mistakes are costing you money—with specific fixes for each.

Results in under 3 minutes. $19.99 one-time.