Insights电商干货
Practical guides for marketplace sellers.写给跨境卖家的实战干货。
Straight answers on agencies, US market entry, shipping costs and TikTok Shop — from a team that runs stores every day.关于选择代运营、进入美国市场、降低运费和 TikTok Shop 的实用指南，来自每天都在一线运营店铺的团队。
Walmart's Sparky AI Now Turns Photos and Shopping Lists Into Carts
On Oct 30, 2026, Walmart added six Sparky AI features, including photo and list-to-cart shopping. Sparky users spend 40% more per order. What sellers should do.
TikTok Shop LIVE GMV Max: How to Run Ads for Your Livestreams
How TikTok Shop's LIVE GMV Max works: LIVE ROI, campaign length, session length, budgets, video requirements, day-one adjustments and a livestream checklist.
Consumer Confidence Rebounds in October, but Shoppers Stay Price-Sensitive
The Conference Board index rose 7.5 points to 91.7 in October while UMich sentiment held near a record low at 48.0. What both surveys mean for holiday sellers.
Walmart Listing Quality Score: The 5 Components and How to Improve Them
How Walmart's Listing Quality score works: content, price, shipping, in-stock and reviews components, exclusions, and a plan to raise your score.
How to Get UPC Barcodes for Amazon and Walmart: GS1 US Costs Explained
How to get UPC barcodes from GS1 US for Amazon and Walmart: $30 single GTINs vs Company Prefixes from $250, cost per item, and a step-by-step checklist.
eBay and Etsy Q3 2026: eBay US Volume Up 27%, Etsy Take Rate Hits 26.2%
eBay Q3 2026 GMV rose 15% to $23.2B with US GMV up 27%, while Etsy GMS grew 8.8% and its take rate rose to 26.2%. What it means for multichannel sellers.
USTR Proposes Keeping China Ship Fees on Hold Until Jan 9, 2027
USTR proposed extending its pause on Section 301 port fees for Chinese-built and -operated ships to Jan 9, 2027. The fees on hold and what importers should do.
How to Ship Lithium Battery Products With USPS: Rules for Sellers
USPS rules for mailing lithium batteries: 100 Wh and 2 g limits, 8 cells or 2 batteries per package, surface-only spare batteries, markings and a checklist.
Amazon Q3 2026: Seller Services Up 9%, Ads Up 11%, Retail Up 2%
Amazon Q3 2026 sales rose 12% to $201.9B. Third-party seller services grew 9% and ads 11% while its own retail grew 2%. What the results mean for sellers in Q4.
How to Sell on Amazon Business: B2B Pricing, Quantity Discounts and Quotes
How to sell to business buyers on Amazon Business: eligibility, business prices, quantity discounts, quotes, B2B Central, best-fit products and a checklist.
UPS Q3 2026: Fewer Packages, Higher Prices, and a Normal Peak Ahead
UPS Q3 2026 revenue rose 6.7% to $22.9B as US revenue per piece jumped 6.1% while volume fell. Its peak-season outlook and what it means for parcel shippers.
Google Free Listings Guide: Show Your Products on Google for Free
How Google Merchant Center free listings work: where products appear, required feed attributes, shipping and return rules, setup steps and a checklist.
TikTok Shop GMV Max Guide: How to Set ROI Targets and Budgets
How TikTok Shop's GMV Max ads work, how to set ROI targets and budgets with TikTok's own formulas, creative and product tips, and a checklist to cut waste.
USPS Adds a Weekly Fuel Surcharge in 2027: What Sellers Need to Know
USPS will add a weekly fuel surcharge to Ground Advantage, Priority Mail and Parcel Select from Jan 2027, tied to EIA fuel prices. What we know and what to do.
Amazon Vine Guide: Eligibility, Fees and How to Launch With Reviews
How Amazon Vine works: who qualifies, the $0/$75/$200 enrollment fees per parent product, when you are charged, how many units to offer, and a launch checklist.
Walmart Black Friday 2026: Three Events, 14 Deal Days From Nov 12
Walmart set three holiday deal events from Nov 12 to Dec 2, 2026: 14 deal days vs 10 in 2025, with a 3-day Cyber Monday. Key dates and what sellers should do.
FDA Cosmetics Registration and Product Listing Under MoCRA: A Seller Guide
Selling cosmetics in the US? How FDA registration and product listing work under MoCRA, who is responsible, the small business exemption, and a checklist.
UPS 2027 Rate Increase: 5.9% From Dec 21 and a 50 lb Handling Minimum
UPS will raise daily rates an average 5.9% on Dec 21, 2026, two weeks before FedEx, and lift the Additional Handling minimum to 50 lb. What sellers should do.
How to Give an Agency Access to Amazon, Walmart and TikTok Shop Safely
Never share your password. How user permissions work on Amazon, Walmart and TikTok Shop, what access an agency really needs, and a checklist to stay in control.
Walmart Opens Its Store to AI Shopping Agents: What Sellers Should Do
On Oct 21, 2026, Walmart launched Agent Profiles with spending limits and an Agent Gateway for ChatGPT, Gemini and Muse. What it means for Marketplace sellers.
Court Certifies IEEPA Tariff Refund Class: What Importers Should Do
On Oct 8, 2026, the Court of International Trade certified a class of IEEPA tariff payers. Who is covered, the $30B at stake, and steps for small importers.
Walmart Marketplace Returns Policy: A Seller Guide for 2026
Walmart's returns rules for Marketplace sellers: the 30-day window, holiday returns to Jan 31, RSS labels, in-store returns, restocking fees and Keep It.
Amazon to Hire 300,000+ for the Holidays: What It Signals for Sellers
On Oct 20, 2026, Amazon said it will hire over 300,000 US workers for the holidays, up from a 250,000 target in prior years. What it signals for Q4 sellers.
2026 Holiday Shipping Deadlines: USPS, FedEx and UPS Ship-By Dates
2026 holiday ship-by dates for USPS (Ground Advantage Dec 17, Priority Mail Dec 18) and FedEx, notes on UPS, and how sellers can set order-by cutoffs.
Walmart Approves 8 More Parcel Carriers, Including UniUni and GOFO
Walmart added UniUni, GOFO, SwiftX, DoorDash and four other carriers to its approved list for seller-fulfilled orders on Oct 13, 2026. Rules, risks, next steps.
Walmart Seller Performance Standards: The 8 Metrics and Thresholds
Walmart Marketplace Seller Performance Standards explained: the 8 metrics, thresholds and windows from Walmart's July 2026 update, and how to stay within them.
Amazon Sponsored Brands: Formats, Pricing and Setup Guide
Amazon Sponsored Brands explained: who is eligible, video and collection formats, CPC vs vCPM vs reserved share of voice, and a setup that works, per Amazon.
TikTok Shop Black Friday 2026 Runs Nov 11–30: Dates and Seller Rules
TikTok Shop's Black Friday and Cyber Monday campaign runs Nov 11–30, 2026. Last year's $500M+ weekend, official seller requirements and a checklist to prepare.
Amazon Insurance Changes Nov 2: Safety Categories and the Insurance Accelerator
From Nov 2, 2026, Amazon requires $1M liability cover for enhanced safety categories at any sales level, and China sellers must use the Insurance Accelerator.
Google Launches Universal Cart in the US: What Merchants Need to Know
On Oct 15, 2026, Google launched Universal Cart in US Search and Gemini: one cart across stores, price alerts and Google Pay checkout. How merchants get in.
How a Foreign Company Gets a US EIN: IRS Rules for Sellers
How Chinese and other foreign companies get a free US EIN from the IRS: who can apply online, the international phone line, fax and mail timing, and SS-4 tips.
Amazon Ads Review Requests: Paid Review Invitations Head to Beta
Amazon Ads announced Review Requests, a paid ad inviting recent buyers to review products under 1,000 ratings, with a US beta in late Oct 2026. What we know.
USPS Priority Mail vs Ground Advantage: Which Should Sellers Use?
Priority Mail vs Ground Advantage for sellers: delivery times, size limits, insurance, DIM weight, Flat Rate prices and a data-driven way to choose per order.
China Section 301 Tariffs Continue; 178 Exclusions Expire Nov 9
On Oct 7, 2026, USTR confirmed the China Section 301 tariffs remain in effect, and 178 exclusions expire Nov 9 unless extended. What importers should check now.
TikTok Buy Direct and Shopping Assistant: What Brands Need to Know
On Oct 5, 2026, TikTok unveiled Buy Direct one-click checkout, an AI Shopping Assistant and an ad network for US advertisers. What we know and what to do.
How to File a USPS Claim for Lost or Damaged Packages
USPS claim rules for sellers: when you can file for lost or damaged packages, the 60-day deadline, evidence USPS requires, payout timing, appeals and a routine.
Amazon vs Walmart Referral Fees: A Category-by-Category Comparison
Amazon and Walmart referral fees compared from their official fee pages: where rates match, where Amazon costs more, fixed fees, minimums and worked examples.
NRF Forecasts $1.013 Trillion Holiday Season, Up 4.2%
On Oct 15, 2026, NRF forecast US holiday sales up 4.2% to $1.013 trillion, faster than 2025. How it compares with online forecasts and what Q4 sellers can do.
Walmart Marketplace Referral Fees: Rates, Tiers and Examples
Walmart Marketplace referral fees by category, how price bands differ from portion-based tiers, worked examples and a pricing checklist from Walmart's fee page.
September 2026 Retail Sales: Nonstore Up 8.2% as Spending Holds Up
Census data out Oct 15: US retail and food sales hit $745.0B in September, up 6.3% YoY; nonstore retailers rose 8.2%. What the numbers mean for Q4 sellers.
The FTC Fake Reviews Rule: What Sellers Can and Can't Do
The FTC rule banning fake and paid-for reviews took effect Oct 21, 2024, with fines up to $53,088 per violation. What's banned, what's allowed, and a checklist.
IEEPA Tariff Refunds: $122B Certified as CAPE Phase 3 Opens
CBP has certified about $122B in IEEPA tariff refunds and set CAPE Phase 3 for Oct 6, 2026. Who qualifies, the $1.3B stuck on bank details, and what to do now.
USPS Ground Advantage for Sellers: Rules, DIM Weight and Savings
USPS Ground Advantage rules for sellers: 70 lb limit, ounce tiers, $100 insurance, DIM weight ÷ 139 over 1 cu ft, temporary 2026 prices and a savings checklist.
TikTok Shop Trends 2026: Beauty, $40 Products and a Top-Heavy Market
Marketplace Pulse tracked 150,000+ US TikTok Shop sellers: body-related products lead, beauty is ~30%, top items sell near $40, 1% of sellers drive 60% of GMV.
Texas Moves to End Sales Tax on Marketplace Seller Fees
On Sept 30, 2026, Texas's Comptroller ordered a rule change to stop taxing marketplace fees as data processing. Timeline, the math, and why to keep paying now.
US Sales Tax for Marketplace and DTC Sellers: Nexus Basics
When must an online seller collect US sales tax? Economic nexus, marketplace facilitator laws and official thresholds for CA, TX, IL and FL, plus a checklist.
Amazon Seller Central Now Connects Walmart, eBay, Shopify and TikTok
Amazon's free multichannel tools let US sellers connect eBay, Shopify, TikTok and Walmart in Seller Central. What is live, what is coming, and what to check.
CPSC eFiling: Product Certificates for US Importers and Sellers
Since July 8, 2026, most CPSC-regulated imports need certificate data eFiled with customs. Which certificate you need, what to file, and a readiness checklist.
TikTok Shop Adds Box-Free Returns at ~10,000 UPS Happy Returns Locations
On Sept 29, 2026, UPS-owned Happy Returns joined TikTok Shop: box-free, label-free returns at ~10,000 US drop-off points. Facts, open questions, seller steps.
Amazon Brand Registry Growth Tools: What Amazon's Data Says
A+ Content, Manage Your Experiments, Brand Stores, Subscribe & Save and Attribution: the Brand Registry tools Amazon says lift sales, with official figures.
Amazon Holiday Returns: A Seller's Guide to the Extended Window
How Amazon's extended holiday return window works for FBA and seller-fulfilled orders, what NRF data says on return rates, and a 5-step plan to guard Q4 margin.
Prime Big Deal Days 2026 Results: $9.86B Online, Deeper Discounts
Adobe says US shoppers spent $9.86B online during Amazon's Oct 6–7 Prime Big Deal Days, up 8.5%. Category lifts, discounts, mobile and what sellers should do.
How to Size Your US Market Opportunity Using Official Data
US e-commerce hit $340.2B in Q2 2026, 17.1% of retail, per Census. How to go from the national total to your category, measure demand and set a sales target.
Ship with Walmart Comes to ShipStation: Discounted Labels and Lost-Package Protection
Walmart Marketplace sellers can now buy Walmart-negotiated labels in ShipStation, with up to $100 lost-item protection. What it includes and what to check.
Stripe to Buy Parafin, an Amazon Lending Provider: What Sellers Should Know
Stripe is buying Parafin, which has funded $3B+ to 60,000+ US businesses and provides Amazon Lending offers. What changes and how sellers should respond.
How to Compare Seller Financing Offers: Factor Rates, APR and Hidden Costs
Loans, credit lines and cash advances quote costs differently. How to compare any offer on an annual basis, what lenders must disclose, and when to borrow.
E-commerce Agency Pricing Models Compared: Fixed Fee, % of Sales or Hybrid?
How agency retainers, percentage-of-sales and hybrid fees work, a worked cost comparison at different sales levels, and the questions that reveal the real cost.
SHEIN's First Results as a Listed Company: Flat Revenue, Profits Halved
SHEIN's H1 2026: revenue up 1% to $20.1B, adjusted profit down 55.6%, US Q2 revenue down 6% and fulfillment costs at half of revenue. What it means for sellers.
LTL Freight Class Explained: How Density Sets Your Shipping Cost for Bulky Items
How NMFC freight classes work after the July 2025 density changes: the 13-tier density table, how to calculate density, a pallet example and ways to cut costs.
Amazon Adds LTL Freight Labels, Walmart Builds Bulky Hub: What It Means for Big-Item Sellers
Amazon adds LTL labels to Buy Shipping and plans regional bulky pricing; Walmart invests $300M in an oversized-goods hub. What changes for heavy-item sellers.
Best Buy Launches on TikTok Shop: What It Means for Sellers
Best Buy brings nearly 10,000 products to TikTok Shop in late October 2026. The details, TikTok Shop GMV data, and how independent sellers should respond.
Amazon AI Image Rules: How to Label AI-Generated People in Listings
Amazon requires a contains-synthetic-performer tag on images with photorealistic AI-generated people. What qualifies, how to tag files, and an audit checklist.
Walmart Fulfillment Services (WFS) Fees Explained, With Examples
WFS fulfillment fees by weight, surcharges, peak and long-term storage fees from Walmart, plus worked examples and a checklist to protect your margin.
When Holiday Discounts Peak by Category: What Adobe's 2026 Data Shows
Adobe's full 2026 forecast: $9.9B for October Prime Days, the day each category's discount peaks, Cyber 5 surges and new traffic sources for sellers.
US–China Truce Extended to Jan 10, 2027, and the "30-for-30" Tariff List
The US–China tariff truce now runs to Jan 10, 2027, and a White House list names 77 Chinese product lines for possible tariff cuts. What it means for sellers.
How to Find Your Product's HTS Code and US Duty Rate
How US HTS codes are built, how to search the official schedule, check extra duties, use CBP rulings, and request a binding ruling. A step-by-step guide.
TikTok Shop Account Health Rating (AHR): Thresholds, Penalties and Recovery
How TikTok Shop US Account Health Rating works: 200-point start, 150/100/50/0 thresholds, 180-day expiry, how to earn points back and protect your shop.
Amazon Adds Prime Delivery to Merchant Websites and Cuts MCF Fees up to 25%
Since Sept 24, 2026, MCF merchants can offer Prime delivery on their own sites at no extra fee, and FBA sellers can save 15–25% on MCF fees. What it means.
Amazon Sponsored Products Bidding Strategies and Placement Adjustments Explained
How fixed, down-only and up-and-down bidding work, how placement adjustments stack on top, a worked example, and how to choose settings from your own data.
FedEx 2027 Rate Increase: 5.9% Headline, Bigger Hikes for Small Parcels
FedEx list rates rise 5.9% on Jan 4, 2027, but 1–5 lb parcels and delivery-area surcharges rise more. The numbers, and what e-commerce shippers should do now.
2026 Holiday E-commerce Forecasts: Adobe, Deloitte and eMarketer Compared
Adobe forecasts a record $275.1B in US online holiday sales, up 6.7%. How the major 2026 forecasts compare, and what they mean for marketplace sellers in Q4.
Shipping to US Customers After De Minimis: Rules and 3 Fulfillment Models
The $800 de minimis exemption is gone for all countries. What CBP requires now, who acts as importer, and how direct parcels, bulk import and FBA/WFS compare.
US Trademark Registration for Chinese Sellers: Fees, Rules and Brand Registry
Foreign applicants need a US attorney, USPTO fees start at $350 per class, and a pending mark can unlock Amazon Brand Registry. A practical US trademark guide.
Walmart's October Deals Event (Oct 5–11, 2026): What Sellers Should Know
Walmart's Deals sale runs Oct 5–11, 2026, overlapping Prime Big Deal Days. Dates, advertised discounts, Walmart's eCommerce growth and a seller prep checklist.
Prime Big Deal Days 2026 (Oct 6–7): Dates, Data and a Seller Prep Plan
Amazon's Prime Big Deal Days runs Oct 6–7, 2026. Last year's results, the Q4 fee and inventory dates around it, and a 7-day checklist for marketplace sellers.
Amazon Seller Liability Insurance: Requirements and How to Comply
When Amazon requires commercial liability insurance, what the policy must include, typical costs, and a step-by-step checklist so your certificate passes.
Walmart Marketplace Approval Requirements: Documents and Checklist
What Walmart Marketplace requires to approve a seller, which documents business verification asks for, common mistakes, and how 2026 new-seller savings work.
2026 Peak Season Surcharges Start This Weekend: UPS, FedEx and USPS
UPS peak charges start Sept 27, FedEx Sept 28 and USPS holiday prices Oct 4. Dates, per-package amounts vs 2025, and a checklist to protect your Q4 margins.
10 Questions to Ask Before Hiring an E-commerce Agency
Fees, contracts, account access, ownership, reporting and red flags: 10 questions to ask any Amazon, Walmart or TikTok Shop agency before you sign.
Selling in the US: 8 Things to Prepare Before You Launch
Launching in the US? Prepare these 8 essentials first: entity and tax, trademark, compliance, insurance, importing, listings, ads, and returns.
7 Practical Ways to Cut US Parcel Shipping Costs
Cut US parcel shipping costs: right-size boxes for DIM weight, watch weight breaks, compare carriers, avoid surcharges and rate-shop every shipment.
TikTok Shop US: A Practical Playbook for Creator Sampling
A step-by-step playbook for TikTok Shop US creator sampling: set commissions, vet affiliates, write briefs, track results and avoid costly mistakes.
Amazon Accelerate 2026: Seller Assistant Upgrade and New AI Plugin
Amazon Accelerate 2026 brought a broader Seller Assistant, background automations and a plugin for Quick and Claude. What's new, and what sellers should do now.
How to Lower ACoS on Amazon Without Killing Your Sales
Calculate your break-even ACoS, cut wasted search terms, fix campaign structure and bids, and improve conversion: a practical guide to lowering Amazon ACoS.
Walmart AI 助手 Sparky 升级：拍照和手写清单直接生成购物车
Walmart 于 2026 年 10 月 30 日为 AI 购物助手 Sparky 新增六项功能，包括拍照识别和手写清单生成购物车。Sparky 用户每单多花 40%。本文解读新功能、尚不清楚的地方，以及平台卖家应对 AI 选品的 Listing 优化清单。
TikTok Shop LIVE GMV Max：直播间广告怎么投
详解 TikTok Shop LIVE GMV Max 直播广告：LIVE ROI 怎么算、计划和单场时长、预算设置、引流视频数量、开播第一天如何调整，以及常见误区、直播策划要点和投放检查清单，帮助卖家少烧钱、多出单。
10 月美国消费者信心反弹，但购物者依旧对价格敏感
10 月世界大型企业联合会消费者信心指数上升 7.5 点至 91.7，密歇根大学信心指数仍在 48.0 的低位。本文解读两项调查数据，以及对黑五假日季卖家定价和备货的启示。
Walmart Listing Quality 分数：五大评分维度与提分方法
详解 Walmart Listing Quality 分数：内容质量、价格竞争力、配送、上架有货和评论五大维度，哪些商品不计入评分，以及按优先级提分的步骤、常见误区、单个 Listing 内容清单和每周检查清单。
如何为 Amazon、Walmart 获取 UPC 条码：GS1 US 费用详解
详解如何从 GS1 US 获取用于 Amazon、Walmart、TikTok Shop 的 UPC 条码：单个 GTIN 30 美元与 250 美元起的厂商识别代码对比、不同规模下的单个成本、怎么选最划算、获取步骤、平台注意事项，以及卖家条码管理清单。
eBay 与 Etsy 2026 三季报：eBay 美国交易额增 27%，Etsy 抽佣率达 26.2%
eBay 2026 年第三季度 GMV 增长 15% 至 232 亿美元，美国 GMV 增长 27%；Etsy GMS 增长 8.8%，抽佣率升至 26.2%。本文解读两大平台财报核心数据、直播与 AI 工具进展、费率变化，以及对多渠道卖家的启示和行动清单。
USTR 拟将中国船舶港口费暂停期延至 2027 年 1 月 9 日
美国贸易代表办公室提议把对中国建造和运营船舶的 301 港口费暂停期延长至 2027 年 1 月 9 日。本文梳理被暂停的费用标准、时间线，以及中国出口美国卖家的应对清单。
如何用 USPS 寄送带锂电池的商品：卖家规则指南
详解 USPS 锂电池寄送规则：锂离子每块 100 Wh、锂金属每块 2 克上限，每件最多 8 个电芯或 2 块电池，单独电池仅限地面运输，以及包装标识要求、国际寄送限制和卖家合规清单。
亚马逊 2026 年三季报：卖家服务增 9%、广告增 11%、自营仅增 2%
亚马逊 2026 年第三季度销售额增长 12% 至 2,019 亿美元，第三方卖家服务增长 9%、广告增长 11%，自营线上商店仅增长 2%。本文解读财报数据、分析师预期对比、Q4 指引，以及平台卖家的旺季应对清单。
如何在 Amazon Business 上做 B2B：企业价、数量折扣与询价
详解如何通过 Amazon Business 向企业客户销售：参与资格、企业专享价、数量折扣、询价、B2B Central 工具、适合的产品类型，常见误区，以及帮助工厂和品牌快速开通企业销售的上手清单。
UPS 2026 年三季报：件数下降、单价上涨，旺季照常
UPS 2026 年第三季度营收增长 6.7% 至 229 亿美元，美国单件收入涨 6.1% 而件数下降。本文解读财报数据、亚马逊减量后的旺季预期，以及对跨境卖家运费成本的影响和应对清单。
Google 免费商品展示指南：让商品免费出现在 Google
详解 Google Merchant Center 免费商品展示：商品会出现在哪些位置、Feed 必填属性和字符限制、2027 年起的图片尺寸要求、运费退货设置、从零开通的步骤，以及提升曝光的优化技巧和检查清单。
TikTok Shop GMV Max 投放指南：ROI 目标与预算怎么设
详解 TikTok Shop GMV Max：自动化投放如何运作、如何用官方公式设定 ROI 目标和预算、保本 ROI 怎么算、素材和选品建议，何时调整出价，以及帮助中小卖家避免浪费广告预算的投放清单。
USPS 2027 年起按周收燃油附加费：卖家须知
USPS 宣布 2027 年 1 月起对 Ground Advantage、Priority Mail、Parcel Select 等加收按周调整的燃油附加费，挂钩 EIA 柴油和航空燃油价格。本文解读附加费规则、各服务对应的燃油指数、临时 8% 加价的来龙去脉，以及卖家应对清单。
Amazon Vine 完全指南：资格、费用与新品出评节奏
详解 Amazon Vine：参加资格、按父体收取的 0/75/200 美元报名费、何时扣费、送多少件合适、如何安排 FBA 入仓与上新节奏，以及使用 Vine 时必须遵守的评论合规规则，并附一份新品出评操作清单。
Walmart 2026 黑五：三场大促共 14 天，11 月 12 日开跑
Walmart 公布 2026 年三场假日大促：11 月 12 日至 12 月 2 日共 14 天，比 2025 年多 4 天，网络星期一延长到 3 天。本文梳理三场活动的日程与开始时间、Walmart+ 会员抢先规则、与去年的对比，以及 Marketplace 卖家的备货、定价和广告备战清单。
FDA 化妆品工厂注册与产品备案（MoCRA）卖家指南
在美国卖化妆品必须了解 MoCRA。本文讲清 FDA 工厂注册与产品备案怎么做、工厂和品牌谁负责、严重不良事件上报、小企业豁免的门槛与例外，并附操作清单。
UPS 2027 年涨价：12 月 21 日起平均涨 5.9%，额外处理最低 50 磅
UPS 将于 2026 年 12 月 21 日起平均上调日常费率 5.9%，比 FedEx 早两周，并把额外处理最低计费重量提高到 50 磅。本文解读日常费率、小企业费率、邮编分区和燃油附加费等变化要点，与 FedEx 对比，并给出卖家应对清单。
如何安全地给代运营开通 Amazon、Walmart、TikTok Shop 权限
千万别共享主账号密码。本文对比 Amazon、Walmart、TikTok Shop 的子账号邀请和角色权限设置，说明代运营真正需要哪些权限、哪些必须留在店主手里，并附一份可直接照做的权限管理清单。
Walmart 向 AI 购物代理开放：卖家该做什么
2026 年 10 月 21 日，Walmart 推出带消费上限的 AI 代理档案和 Agent Gateway，允许 ChatGPT、Gemini 等助手代顾客下单。本文梳理新功能和代理规则、与亚马逊封堵 AI 代理的做法有何不同、消费者接受度数据，以及卖家优化商品目录的行动清单。
美国法院认证 IEEPA 关税退款集体诉讼：进口商该怎么做
2026 年 10 月 8 日美国国际贸易法院认证 IEEPA 关税退款集体诉讼。未自行起诉的进口商有望获得救济。本文梳理谁在集体内、约 300 亿美元待追回的关税、仍不确定的地方，以及小进口商和 DDP 卖家现在该做的准备。
Walmart 平台退货政策详解：2026 卖家指南
新手卖家最容易踩坑的就是退货。本文根据官方政策详解 Walmart Marketplace 自发货退货规则：30 天退货期、假日季可退至 1 月 31 日、RSS 退货面单、门店退货、补货费限制与 Keep It 无需退货退款的设置，并附卖家退货清单。
亚马逊假日季招聘超 30 万人：对卖家意味着什么
亚马逊于 2026 年 10 月 20 日宣布假日季将在美国招聘超过 30 万人，高于此前三年 25 万人的目标。本文梳理公告要点、零售行业背景，以及这对卖家 Q4 备货和履约的启示。
2026 假日季发货截止日期：USPS、FedEx 与 UPS
汇总 2026 年美国假日季各承运商的发货截止日期：USPS Ground Advantage 为 12 月 17 日、Priority Mail 为 12 月 18 日，以及 FedEx 各项服务的日期和 UPS 相关信息，并教你如何根据自己的备货时间倒推设定截单时间。
沃尔玛新增 8 家认可承运商，含 UniUni、GOFO 和 SwiftX
沃尔玛于 2026 年 10 月 13 日将 UniUni、GOFO、SwiftX、DoorDash 等 8 家承运商加入自发货订单的认可名单。本文梳理新增名单、有效追踪规则、可能的风险，以及卖家进行小范围测试的具体步骤。
沃尔玛卖家绩效标准：8 项指标与门槛
沃尔玛卖家绩效标准详解：依据 2026 年 7 月更新的官方规定，梳理 8 项指标的门槛和统计周期、影响因素与改善方法，并附每周巡检流程，帮你避免商品屏蔽和账号暂停。
亚马逊品牌推广（Sponsored Brands）指南：形式、计费与搭建
依据亚马逊广告官方说明，讲清品牌推广的使用资格、视频和商品集等广告形式、CPC、vCPM 与预留份额三种计费方式，以及一套实用的活动搭建和管理方法。
TikTok Shop 2026 黑五网一 11 月 11–30 日：日期与卖家规则
TikTok Shop 宣布 2026 年黑五网一活动将于 11 月 11 日至 30 日举行。本文梳理去年四天销售额超 5 亿美元的成绩、官方卖家报名门槛（店铺表现分、健康分、发货率）、延长退货期和备战清单。
亚马逊 11 月 2 日保险新规：加强安全类目与保险加速器
自 2026 年 11 月 2 日起，亚马逊要求加强安全类目卖家无论销量都须持有 100 万美元责任险，中国大陆卖家新保单须通过保险加速器购买。本文梳理类目清单、保单要求和合规清单。
谷歌在美国上线 Universal Cart 通用购物车：商家需要知道什么
谷歌于 2026 年 10 月 15 日在美国的谷歌搜索和 Gemini 应用中上线 Universal Cart 通用购物车：跨店铺一个购物车、降价提醒和 Google Pay 结账。本文梳理上线内容、商家的接入方式和仍待解答的问题。
海外公司如何申请美国 EIN 税号：IRS 官方规则
中国等海外公司如何免费向 IRS 申请美国 EIN 税号？本文梳理线上申请的适用条件、国际申请电话、传真和邮寄时效，以及海外实体填写 SS-4 表的官方要点和注意事项。
亚马逊广告推出 Review Requests：付费邀评即将公测
亚马逊广告宣布推出 Review Requests 付费邀评广告，面向评分和评论总数少于 1,000 的商品，将于 10 月下旬在美国公测。本文梳理规则、宣称效果、尚未公开的信息和卖家测试清单。
USPS Priority Mail 与 Ground Advantage 怎么选？卖家对比指南
美国境内发货该选 Priority Mail 还是 Ground Advantage？本文依据 USPS 官方规则，对比两者的时效、尺寸上限、保险、体积重和统一价箱价格，并给出根据真实订单数据选择服务的具体方法。
对华 301 关税继续有效，178 项排除 11 月 9 日到期
美国贸易代表办公室于 2026 年 10 月 7 日确认对华 301 关税继续有效，剩余 178 项产品排除若不延期将于 11 月 9 日到期。本文梳理公告要点、各清单税率，以及中国工厂和进口商需要立即核查的事项。
TikTok 推出 Buy Direct 与 AI 购物助手：品牌需要知道什么
TikTok 于 2026 年 10 月 5 日在纽约广告周发布 Buy Direct 一键下单和 AI 购物助手，并向美国广告主开放广告联盟。本文梳理已知信息、它与 TikTok Shop 的区别，以及独立站品牌现在的应对清单。
USPS 丢件与破损索赔指南：卖家怎么申报
USPS 丢件和破损怎么索赔？本文按官方规则梳理各服务的申报时间窗、60 天截止期限、所需证据、赔付时效和申诉流程，并给出卖家可直接照做的索赔管理流程。
亚马逊 vs 沃尔玛佣金：分类目对比
根据两大平台官方费率页面，对比亚马逊和沃尔玛的佣金：哪些类目费率相同、哪些类目亚马逊更贵，以及月费、最低佣金等固定成本差异，附计算示例和跨渠道定价建议。
NRF 预测 2026 假日季零售 1.013 万亿美元，增长 4.2%
NRF 于 2026 年 10 月 15 日发布预测：今年 11 至 12 月美国零售销售将增长 4.2%，达到 1.013 万亿美元，增速高于去年。本文对比各机构的线上预测，并为 Q4 旺季卖家给出具体的行动清单。
沃尔玛 Marketplace 佣金详解：费率、分档与计算示例
沃尔玛 Marketplace 按类目收取佣金，部分类目按价格档整单计费，部分按分段计费。本文整理官方费率表，附实际佣金比例计算示例和定价检查清单，帮你算准每个 SKU 的毛利。
美国 9 月零售数据：无店铺零售同比增 8.2%，消费保持韧性
美国人口普查局 10 月 15 日公布：9 月零售与餐饮销售额为 7,450 亿美元，同比增长 6.3%，包含电商在内的无店铺零售同比增长 8.2%。本文拆解各品类数据，并给出 Q4 旺季卖家的应对建议。
FTC 虚假评论规则：卖家能做什么、不能做什么
美国 FTC 禁止虚假评论和花钱买好评的规则已于 2024 年 10 月 21 日生效，每次违规最高罚款 53,088 美元。本文为你讲清禁止事项、允许做法，以及跨境卖家的评论合规清单。
IEEPA 关税退款：已核证 1,220 亿美元，CAPE 第三阶段开放
CBP 已核证约 1,220 亿美元的 IEEPA 关税退款，CAPE 第三阶段定于 10 月 6 日开放。本文梳理哪些进口商有资格、为何有 13 亿美元因缺少银行信息被暂扣，以及进口商现在该做什么。
USPS Ground Advantage 卖家指南：规则、体积重与省钱要点
USPS Ground Advantage 是美国境内轻小件电商发货的常用服务。本文梳理 70 磅上限、盎司分档、含 100 美元保险、超过 1 立方英尺按 139 计算体积重等官方规则，并附计算示例和省钱清单。
TikTok Shop 2026 趋势报告：美妆、40 美元价格带与头部集中
Marketplace Pulse 追踪了 15 万多家美国 TikTok Shop 卖家，发现身体相关品类占主导，美妆约占三成，头部商品售价约 40 美元，前 1% 的卖家贡献了 60% 的 GMV。本文同时附上卖家应对建议与行动清单。
德州拟取消对平台卖家费用征收的销售税
2026 年 9 月 30 日，德州财政长官签署行政令，拟不再把平台向卖家收取的费用按数据处理服务征税。本文梳理时间表、税额测算，以及为什么目前还不能停缴。
美国销售税入门：平台卖家与独立站卖家的经济关联门槛
平台卖家和独立站卖家什么时候需要自己收美国销售税？本文讲清经济关联和平台代收法，附加州、德州、伊利诺伊州和佛州的官方门槛，以及一份分步自查清单。
亚马逊卖家后台接入沃尔玛、eBay、Shopify 和 TikTok：多渠道工具解读
亚马逊推出免费多渠道工具，美国卖家可在卖家后台连接 eBay、Shopify、TikTok 和沃尔玛账号。本文梳理已上线与即将推出的功能、背后数据，以及接入前需要核对的规则。
美国 CPSC 证书电子申报（eFiling）：进口商与卖家指南
自 2026 年 7 月 8 日起，大多数受 CPSC 监管的进口产品须向美国海关电子申报证书数据。本文讲清 CPC 与 GCC 的区别、申报内容、两种申报方式以及工厂和品牌的准备清单。
TikTok Shop 接入 UPS Happy Returns：全美约 1 万网点免纸箱退货
2026 年 9 月 29 日，UPS 旗下退货服务商 Happy Returns 宣布接入美国 TikTok Shop，买家可在全美约 1 万个线下网点免纸箱、免面单退货。本文梳理已知事实、尚待确认的费用条款，以及卖家在旺季前的应对清单。
亚马逊品牌备案增长工具全解：官方数据与上手顺序
品牌备案不只是防跟卖。本文梳理 A+ 页面、管理实验、品牌旗舰店、订购省和亚马逊归因等工具，结合亚马逊官方公布的销量提升数据，给出上手顺序和增长清单。
亚马逊假日延长退货：卖家应对指南
亚马逊假日季延长退货期适用于 FBA 和自发货订单，线上退货率预计近两成。本文梳理历年规则和 NRF 退货率数据，并给出保护 Q4 利润的五步方案与检查清单。
2026 秋季 Prime 大促复盘：全网线上 98.6 亿美元，折扣更深
Adobe 数据显示，10 月 6–7 日亚马逊秋季 Prime 大促期间美国全网线上消费 98.6 亿美元，同比增长 8.5%。本文拆解品类涨幅、折扣深度和移动端数据，并给出黑五前的卖家行动建议。
如何用官方数据测算你的美国市场机会
美国人口普查局数据显示，2026 年第二季度美国电商销售额 3,402 亿美元，占零售总额 17.1%。本文教你从全国大盘收窄到具体类目，自下而上测算需求，并换算成可执行的销售目标。
Ship with Walmart 接入 ShipStation：折扣面单与丢件保障
沃尔玛美国站卖家现在可以在 ShipStation 中直接购买沃尔玛协议运价面单，按时发货订单还享有最高 100 美元丢件保障。本文整理服务内容、限制条件，以及切换前的比价和检查清单。
Stripe 收购亚马逊贷款资金方 Parafin：卖家需要知道什么
Stripe 将收购 Parafin，这家公司已向 6 万多家美国企业提供超过 30 亿美元资金，也是亚马逊贷款的资金方之一。本文整理交易细节、对现有贷款的影响，以及旺季前卖家使用融资的建议。
如何比较卖家融资方案：系数、年化利率与隐性成本
定期贷款、循环额度和垫资的报价方式各不相同。本文教你把任何融资方案换算成可比的年化成本，说明加州法规要求披露的内容，并给出旺季前判断是否该借钱的方法和对比清单。
代运营收费模式怎么选：固定月费、按销售抽成还是混合模式？
代运营公司常见的固定月费、按销售额抽成和混合模式分别怎么计费？本文用实际数字对比不同月销售额下的费用，列出预算中容易遗漏的成本，以及签约前问清真实费用的关键问题。
SHEIN 上市后首份业绩：收入持平、利润腰斩，卖家怎么看
SHEIN 公布上市后首份半年报：收入仅增长 1% 至 201 亿美元，经调整净利润下降 55.6%，第二季度美国收入下滑约 6%，履约费用占收入一半。本文整理关键数据并分析对跨境卖家的影响。
零担运费等级详解：密度如何决定大件商品运费
2025 年 7 月 NMFC 改为 13 档密度分级后，零担运费等级如何确定？本文整理完整密度对照表、密度计算方法和托盘示例，并给出降低运费等级、避免附加费和重新分级费用的实用方法。
亚马逊上线零担面单、沃尔玛建大件仓：大件卖家要知道的事
亚马逊在 Buy Shipping 中开放零担货运面单，并计划 2027 年推出大件按区域定价；沃尔玛投资 3 亿美元建设大件履约中心。本文整理细节，并分析家具、健身器材等大件卖家该如何应对。
百思买入驻 TikTok Shop：对卖家意味着什么
美国电子产品零售巨头百思买将于 2026 年 10 月下旬带着近 1 万款商品入驻 TikTok Shop。本文整理官方公布的细节和 TikTok Shop 最新 GMV 数据，并分析独立卖家在 3C、小家电等热门类目该如何应对。
亚马逊 AI 图片新规：如何标注 AI 生成的人物
亚马逊要求卖家在含有逼真 AI 生成人物的图片和视频中加入 contains-synthetic-performer 元数据标注。本文说明哪些图片需要标注、背后的纽约州法律、如何添加元数据，以及现有 Listing 的自查清单。
沃尔玛 WFS 费用详解：配送费、仓储费与计算示例
沃尔玛官方仓 WFS 怎么收费？本文按官方最新费率整理按重量计算的配送费、服装和低价附加费、旺季及长期仓储费，并给出手机壳、T 恤、小家电等实际计算示例和入仓前的检查清单。
2026 节日季各类目折扣何时最深？Adobe 数据告诉你
Adobe 完整版 2026 节日季预测：10 月 Prime 大促预计 99 亿美元，各类目折扣最深的日期、黑五网一热门子类目暴涨幅度，以及社交和 AI 流量的变化。本文提炼卖家可直接用于规划的数据。
中美休战延至 2027 年 1 月 10 日，“30 换 30”降税清单有哪些商品
中美关税休战延长至 2027 年 1 月 10 日，白宫同时公布“30 换 30”框架清单，77 个中国商品税号未来可能获得降税，涵盖玩具、家纺、小家电等电商热门类目。本文解读清单内容和卖家应对。
如何查询产品的美国 HTS 编码和关税税率
美国 HTS 编码怎么看？如何用 USITC 官方关税表检索税率、确认第 99 章额外关税、查找 CBP 已有裁定，以及申请预裁定。本文给出分步骤指南、资料清单和常见错误，帮助出海卖家算准到岸成本。
TikTok Shop 店铺健康分（AHR）详解：扣分档位、限制与恢复方法
TikTok Shop 美国站店铺健康分怎么算？所有卖家初始 200 分，降到 150、100、50 分分别限制 7、14、28 天，降到 0 分可能被永久停用。本文整理官方规则、常见扣分原因，以及守住和恢复分数的实用方法。
亚马逊开放独立站 Prime 配送，多渠道配送费最高省 25%
2026 年 9 月 24 日起，使用亚马逊多渠道配送（MCF）的商家可在独立站免费提供 Prime 配送，FBA 卖家前六个月还能节省 15%–25% 的站外订单配送费。本文整理细节、数据和我们的解读。
亚马逊商品推广竞价策略与广告位调整详解
固定竞价、仅降低和提高与降低三种竞价策略如何运作，广告位调整怎样叠加在出价之上，以及如何用自己的数据选择设置。本文附带实际计算示例、策略选择表和常见错误清单。
FedEx 2027 年涨价 5.9%：轻小包裹和附加费涨得更多
FedEx 宣布 2027 年 1 月 4 日起标准价平均上涨 5.9%，但 1–5 磅轻小包裹、偏远地区附加费和超尺寸费涨幅更高。本文整理具体数字，并给出电商卖家现在就该做的运费应对清单。
2026 美国节日季电商预测：Adobe、德勤、eMarketer 怎么看
Adobe 预测今年美国节日季线上消费将创下 2,751 亿美元新高，同比增长 6.7%。本文对比 Adobe、德勤和 eMarketer 三家机构的预测数据，并解读这些数字对平台卖家 Q4 备货和投放的意义。
小额豁免取消后如何发货到美国：规则与三种履约模式
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