On March 31, 2026, the Spring Promotion on the US platform officially came to an end.

Over the past week, some sellers have experienced explosive sales while others have seen their ad budgets burn a hole in their pockets. However, regardless of the results, the most dangerous time is not during the promotion, but in the weeks immediately following it. This is because, in addition to sales data, the Spring Promotion leaves behind three psychological traps that are easy to fall into.

Trap One: Treating Promotional Bonuses as Product Strength

This is the most fatal cognitive misconception.

During the Spring Promotion, many products' sales volumes were boosted by Coupons, LD/BD, and Prime discounts. Once the promotion ends, the true demand is exposed. If you take the sales volume during the promotional period as the "normal level" of the product, you will make wrong decisions - for example, stocking up for Prime Day based on the sales volume during the promotional period, only to find that sales drop sharply after the promotion ends, resulting in inventory backlog.

How to break it? Pull the sales data for the seven days of the Spring Promotion and divide the products into two categories: one is the "Promotion Conversion Type" - orders are placed only with large discounts, and sales stop once the discount is withdrawn; the other is the "Natural Conversion Type" - even with average discounts, there is still stable sales. Only the latter is worth increasing investment for on Prime Day.

Trap Two: Treating Short-term Fluctuations as Long-term Trends

During the Spring Promotion, you may encounter a sudden surge in a particular keyword or a rapid rise in an ASIN ranking. However, a seven-day data sample is too small and easily influenced by random factors.

For example, your competitor happened to run out of stock just before the Spring Promotion, and you picked up the traffic leak. If you take this as "my product has finally exploded," and then prepare inventory and advertise according to this rhythm, you will be knocked back to your original state once the competitor restocks.

How to break it? Don't just look at the data for the week of the Spring Promotion. Extend it to 30 days, 60 days, to see if the trend is really going up. If sales were flat in the 30 days before the Spring Promotion and suddenly exploded during the promotion, it is likely due to promotional bonuses, not product strength.

Trap Three: Treating Accidental Success as Replicable Experience

During the Spring Promotion, you may have tried a new tactic - for example, a certain keyword's SBV video ad had particularly good results, or a certain Coupon was just at the conversion point. Then you think you've "found the key to explosive orders" and are ready to replicate it entirely on Prime Day.

However, user mentality during major promotions is completely different from usual. People who don't buy normally may place orders during the promotion because "everyone else is buying." This kind of conversion driven by "herd effect" is difficult to replicate outside of major promotions.

How to break it? Mark the strategies that performed well during the Spring Promotion, but before applying them on Prime Day, test them on a small scale during non-promotional periods. If they work normally, it indicates that the strategy itself is effective; if it only works during major promotions, it indicates a "holiday bonus" and should not be considered normal.

Written at the End

The Spring Promotion has ended, but the real review has just begun.

The most dangerous thing is not poor performance, but good performance - because you may treat luck as ability, promotions as strength, and then bet all your chips on Prime Day, ending up losing more than anyone else.

I suggest you spend a week to fully review the data of the Spring Promotion, filter out those "false signals" with rationality, and then write the truly valuable insights into your battle manual.

After all, in Amazon's 2026, those who survive are not the ones who rush the most, but the ones who understand the review the best.