转化追踪
Bottom Line
Before launching Google PMax for a jewelry store, the following must be ready simultaneously: multi-ratio ad creatives, complete GMC attributes, landing page speed, and GA4 purchase events — missing any one of these will show up as "burning money with zero data."
PMax Jewelry Store Readiness Matrix
| Dimension | Requirement | Tool/Reference |
|---|---|---|
| Creatives | 1:1, 4:5, 16:9; white background + lifestyle + on-model | Visogen |
| Feed | brand, material, gtin/mpn, HD main image | GMC Fix Guide |
| Landing Page | Mobile LCP < 2.5s, clear CTA | CWV Guide |
| Tracking | purchase + value + transaction_id | GA4 Guide |
| Content | English blog/FAQ supporting GEO | Jewelry Growth |
Creative Specs Quick Reference
- Square 1:1 — Feed, some Discovery
- Portrait 4:5 — Meta / Mobile Feed
- Landscape 16:9 — YouTube, Display
- Main image ≥800×800, no watermark, clean background
Prepare at least 3 visual sets per SKU (white background, lifestyle, on-model) before launching PMax; otherwise the system won't have enough creatives to learn from.
24-Hour Pre-Launch Checklist
- Test order completed, GA4 DebugView shows purchase
- GMC has no critical "Action required" errors
- Thank-you page URL matches GTM trigger
- Privacy/Cookie/Refund pages accessible
- No security warnings on site (see Emergency Guide)
Case Study (Anonymized)
A silver jewelry factory in Dongguan: after listing 200 SKUs, they rushed to launch PMax. Because the feed was missing brand + tracking was not configured, Ads saw 0 conversions over two weeks. After completing the attributes and setting up GTM, conversion data recovered from week three, and only then did they enable tROAS.
FAQ
Q: Can jewelry without a GTIN run PMax? A: Yes, use brand+mpn and set identifier_exists, but review will be stricter, so attributes must be complete.
Q: Should PMax and Search launch at the same time? A: They can run in parallel once tracking is reliable; in the early stages, verify purchase first before scaling up.
Q: Can a Chinese team operate English-language PMax? A: Yes, use AI to assist with English creatives and copy, but materials and compliance wording still require human review.
Q: Are the creatives interchangeable with Meta? A: Aspect ratios can be reused, but Meta requires its own Pixel+CAPI setup (see Shopify Meta Guide).
Q: Does the GULINGLE jewelry package include PMax preparation? A: The Jewelry Vertical Solution includes visuals, Feed, tracking, and content preparation, and can be purchased by phase.
