# Platform Promo Patterns

Use this reference when the user asks for platform-specific nuance, category guidance, or help judging whether a promotion is truly worth chasing.

## Taobao / Tmall

Typical high-heat mechanics:
- platform-wide mega-sale phases such as preheat, deposit, opening-night release, and return window
- brand flagship coupons
- cross-store full reduction
- category-day campaigns
- membership layers such as 88VIP-style savings

Usually strongest for:
- brand flagship browsing
- cosmetics and personal care
- home goods
- fashion and seasonal trends

Watch for:
- poster discounts that still need multiple coupons to become useful
- same-looking listings with different seller quality
- complicated stacking that normal users may not complete cleanly
- preheat messaging that sounds bigger than the actual low-price window

Good heat signals:
- broad brand participation
- visible category landing pages
- repeated banner placement over several surfaces
- official store support rather than only small sellers

## JD

Typical high-heat mechanics:
- self-operated campaign pages
- category subsidies for 3C and appliances
- time-limited flash sales
- member or PLUS-oriented discounts
- invoice- and delivery-friendly bundles

Usually strongest for:
- appliances
- phones, laptops, and accessories
- high-ticket goods where authenticity and after-sales matter
- gift purchases with delivery certainty requirements

Watch for:
- headline prices that look slightly higher but hide better fulfillment and easier returns
- third-party sellers mixed into the same search area
- bundles that appear cheaper only because accessories are weaker

Good heat signals:
- self-operated coverage
- direct subsidy labels
- strong warehouse and delivery promise
- price stability across multiple official surfaces

## PDD

Typical high-heat mechanics:
- 百亿补贴-like subsidy zones
- limited-time low-price channels
- group-buy or team-buy paths
- channel-specific store subsidies

Usually strongest for:
- standard consumer goods
- fast-moving daily items
- price-sensitive commodity products
- mainstream electronics when seller quality is still strong enough

Watch for:
- group-buy dependency
- confusing final-price conditions
- seller-quality variance
- aggressive headline price with weaker after-sales

Good heat signals:
- subsidy labels attached to mainstream, easy-to-verify SKUs
- broad access without special invite flow
- official or higher-trust merchant participation

## VIPSHOP

Typical high-heat mechanics:
- branded clearance events
- outlet-style limited-time specials
- seasonal apparel and footwear markdowns
- cosmetics and lifestyle flash-sale windows

Usually strongest for:
- apparel
- sportswear
- beauty and personal care
- branded overstock or seasonal clearance

Watch for:
- color and size leftovers driving the price
- end-of-season inventory that is cheap for a reason
- fewer universally strong deals outside its core categories

Good heat signals:
- deep cuts on recognizable brands
- broad size coverage instead of only leftovers
- clear seasonality logic that matches the user's need

## Mega-Sale Phase Cheat Sheet

Use this when the user asks whether to buy now or wait.

- preheat: high noise, useful for watchlists, not automatically the best buy window
- deposit / presale: best for locking high-ticket official goods when stock is tight
- opening release: broadest comparison point and easiest moment for a general audience
- category-day / channel burst: often better for specific verticals than the platform-wide slogan phase
- return / tail phase: lower noise, occasionally strong cleanup prices, but stock becomes patchy

## Fake Heat Signals

Be skeptical when:
- the campaign language is huge but the product coverage is tiny
- the lowest price depends on multiple hard-to-combine conditions
- the promotion is visible everywhere but only a few teaser SKUs are good
- the platform pushes urgency without showing broad, reproducible value
- the cheapest route relies on low-trust sellers or awkward bundles

## Real Value Signals

Treat a campaign as truly actionable when most of these are true:
- normal users can access the price without heroic stacking
- the value applies across multiple brands or a meaningful category
- seller quality is acceptable
- shipping and after-sales are not obviously sacrificed
- the time window is real, not vague preheat language

## Quick Recommendation Shortcuts

Use these as tie-breakers:
- user wants low friction: favor simpler mechanics over the mathematically lowest poster price
- user wants high-ticket safety: favor official, self-operated, or higher-trust seller paths
- user wants clearance hunting: favor outlet-style and seasonal campaigns
- user wants everyday savings: favor low-threshold subsidy channels over loud mega-sale branding