Zhang Min (a pseudonym) runs a Meiketuo store on the Mexico platform, but she can't make sense of the data.

Within the same category of 3C accessories, her listing—with a 4.7-star rating, professionally edited main images, a title that fully covers all relevant keywords, and a price that’s 81 TP3T lower than competitors’—should, in theory, have a decent conversion rate.

However, backend data shows that while her listing’s click-through rate is normal, the add-to-cart rate is somewhat weak, and the conversion rate is only 55% of that of a competing product (a local store).

She couldn't figure it out no matter how hard she tried, until she compared all the variables in the two listings item by item and discovered that the only difference that couldn't be bridged through operational efforts was—delivery time.

Zhang Min's Cross-Border Store: Shipping takes 15 to 25 days.

Local Competitors: Shipments from fulfillment centers, 1 to 3 days.

Chen Yang (a pseudonym) has been running a local store on Mercado Libre in Brazil for four months, with monthly sales consistently hovering around 250,000 reais.

Last week, his Brazilian accountant sent him the first-quarter tax return. It was three pages long, written in Portuguese, with densely packed forms and two rows of numbers showing two different results:

Simples Nacional (Simplified Tax System): Tax liability of 11,000 reais

Presumed Profit System (Lucro Presumido): Tax liability of 18,500 reais

For the same sales figure, the two calculation methods differed by 401 TP3T. Chen Yang’s first thought was—have I been overpaying my taxes all along?

The more he looked through the information online, the more confused he became. Some people said the simplified tax system was always the most cost-effective, others said that for high-gross-margin categories, the profit projection method should be chosen, and still others said they had tried both and eventually switched to a third approach.

Urgent Alert: Some sellers have recently encountered situations where the Mexican RFC tax ID numbers they were using under a third-party arrangement were subject to tax audits, resulting in the simultaneous suspension of all stores linked to those ID numbers, the freezing of funds, and the seizure of goods. This is not a scare tactic—it is the actual chain reaction following Mexico’s 2026 tax reform.

如果有一片区域，坐拥6.5亿人口、互联网用户快速渗透、电商渗透率却只有欧美的三分之一——你会不会心动？这就是拉美。而在这片土地上，有一个中国卖家正在跑步进场的平台，名叫美客多（Mercado Libre）。

最近半年，情况变了。

同样的产品、同样的广告预算、同样的Listing优化策略，单量逐月下滑。广告ACOS从18%涨到32%。更让他困惑的是——他的产品评分4.6星、价格比竞品低5%，但转化率还是被压着打。