Justine
E-commerce & Shopping Lead
Spécialiste e-commerce depuis 9 ans. A géré l'acquisition PPC de 40+ marques DTC en France et en Europe, dont plusieurs franchissant le cap du M€ de CA mensuel sur Google Shopping. Focus sur la rentabilité marge, la qualité du feed Merchant Center et l'arbitrage Shopping ↔ PMax ↔ Search.
Articles by Justine (25)
- BOFU· 22 minAmazon Ads vs Google Shopping: 2026 Budget Allocation
Stage-by-stage 2026 framework for D2C and e-commerce brands under €100k/month splitting budget between Amazon Ads and Google Shopping — CPC and CR benchmarks, attribution…
- BOFU· 22 minHow to Migrate from Pacvue to SteerAds (Amazon) 2026
A 30-day playbook to migrate Amazon advertising from Pacvue to SteerAds — export, rule capture, capability mapping, a 14-day parallel run, DSP transition, and offboarding.
- MOFU· 24 minAmazon Sponsored Products: Advanced Playbook 2026
Advanced 2026 playbook for scaling Amazon Sponsored Products beyond ASIN basics — funnel-stage campaign structure, broad-vs-exact match harvesting, brand defense…
- MOFU· 20 minRetail Media 2026: Walmart Connect, Instacart & Carrefour
Platform-by-platform comparison of Walmart Connect, Instacart Ads, and Carrefour Links for CPG brands in 2026 — ad formats, attribution capabilities, AOV ranges, CPM…
- BOFU· 20 minGoogle Ads for D2C Beauty, Skincare & CPG Brands 2026
End-to-end 2026 Google Ads playbook for D2C beauty, skincare and CPG brands — Performance Max + Shopping vs Search budget allocation, subscription LTV math that justifies…
- MOFU· 20 minRetail Media 2026: Criteo, Amazon DSP & Instacart Compared
A 2026 comparison of the three retail media networks that matter most for CPG and consumer brands — Criteo, Amazon DSP, and Instacart — across ecosystem reach, ad formats…
- BOFU· 12 minMerchant Center Suspended? Recovery Playbook 2026
A step-by-step 2026 playbook to recover a suspended Google Merchant Center: decode misrepresentation, fix website and policy requirements, separate item disapprovals from account suspension, and request a review.
- MOFU· 11 minGoogle Shopping Products Not Showing? 2026 Fix Guide
Google Shopping products not showing? Work through the feed, Merchant Center, and campaign causes of disapproved or non-serving items, with a 12-row fix table for 2026.
- Guide· 18 minGoogle Ads e-commerce : playbook 2026
Le stack PPC e-commerce 2026 : feed Merchant Center, PMax, Shopping, remarketing dynamique, ROAS par marge, enhanced conversions. Méthode chiffrée.
- BOFU· 14 minGoogle Ads for fashion & luxury e-commerce 2026
Fashion & luxury e-com PPC playbook 2026: return-adjusted ROAS (15-25% return rates), Customer Match for VIP, PMax vs Search split, brand-protect strategy.
- MOFU· 20 minTikTok Ads for D2C e-commerce in 2026: scaling playbook from €5k to €100k/month
Complete 2026 TikTok Ads scaling playbook for D2C e-commerce — from €5k learning-phase launch to €100k/month stable ROAS — UGC creative essentials, TikTok Shop…
- Tutoriel· 11 minGoogle Ads New Customer Acquisition Goal (2026)
The NCA goal makes Smart Bidding value first-time buyers. Two modes, Customer Match data, setting value from LTV, PMax fit, and measuring incremental new revenue.
- Tutoriel· 11 minMerchant Center Item Disapproved for Policy? Fix (2026)
A single Merchant Center item disapproved for a policy issue is fixable in minutes: read the exact reason, fix the feed attribute or page, and request a re-review.
- Tutoriel· 11 minGoogle Free Product Listings Not Showing? Fix (2026)
Free listings missing from the Shopping tab while paid ads run? Work through seven gates to fix Merchant Center free listings in 2026, step by step.
- Tutoriel· 11 minMerchant Center Price or Availability Mismatch? Fix (2026)
Fix Merchant Center 'Mismatched value (price)' and availability disapprovals: why Google crawls your page, the causes, and how to align feed and structured data.
- Tutoriel· 11 minMerchant Center GTIN & Identifier Errors? Fix (2026)
Disapproved or limited Shopping items from GTIN, MPN or brand errors? Fix the feed, set identifier_exists correctly and validate in Diagnostics, step by step.
- Tutoriel· 11 minPerformance Max Assets Disapproved? Fix It (2026)
Performance Max reviews each asset individually. Read the asset status, fix the 7 most common disapprovals and replace the asset without resetting learning.
- Google Ads· 11 minGoogle Ads vs Amazon Ads : e-commerce 2026
E-commerce 2026 : Google Shopping/PMax vs Amazon Sponsored Products. Marketplace vs DTC, marges, ROAS observable, allocation cross-channel.
- MOFU· 20 minGoogle Ads Q4 Shopping feed optimization 2026: maximize peak-season ROAS
A technical, step-by-step Q4 Shopping feed optimization tutorial for 2026 — seasonal title and description optimization, custom labels for promo segmentation, GTIN and…
- Guide· 17 minGoogle Shopping 2026 : setup + feed
Merchant Center, feed optimisé (titres, GTIN, attributs), structure campagnes par marge, bid strategy, exclusions. Le guide complet Shopping 2026.
- Microsoft Ads· 12 minMicrosoft Shopping : feed et Bing Merchant 2026
Setup Bing Merchant Center, optimisation feed produit, ROAS Shopping Microsoft vs Google. Le guide complet pour les e-commerçants.
- Google Ads· 11 minGoogle Ads : Shopify vs PrestaShop setup 2026
Setup Merchant Center et conversion tracking pour Shopify et PrestaShop. Différences techniques, plugins, gotchas. Le guide pour e-commerçants.
- Guide· 12 minLanding pages Google Ads : +CVR 2026
Structure, message match, Core Web Vitals, A/B testing : 10 leviers chiffrés pour doubler votre taux de conversion landing Google Ads en 2026.
- Google Ads· 9 minGoogle Ads pour formations en ligne 2026
Stratégie acquisition pour edtech et formations : CPF, intent learner, parcours d'inscription, attribution sur cycle long, B2B financé. Le guide complet 2026.
- Guide· 12 minShopping vs Search : split budget 2026
Shopping vs Search en e-com : intent, granularité, cannibalisation, split budgétaire. Méthode chiffrée basée sur 2 000+ comptes audités.