The Spring Promotion has concluded, but the real test has just begun.

On April 1st, new rates for the Japan site officially took effect; on April 15th, the first assessment of the overage inventory surcharge will occur. The unsold inventory left by the Spring Promotion is becoming a "time bomb" that deducts automatically every month. April, after the Spring Promotion, is the best window for a "spring cleaning"—clearing out what needs to be cleared, optimizing what needs to be optimized, and settling the accounts that need to be settled.

Action One: Clear "High-Risk Overage Inventory" Before April 15th

Open the inventory report and filter out products that have been in stock for over 271 days (especially risky for the Japan site). On April 15th, Amazon will charge an overage inventory surcharge for inventory stored for 365 days or more, with a minimum of 20 yen per item per month. However, the assessment is based on the inventory status as of April 15th, so it's not too early to start now.

For products in stock for over 300 days, it is recommended to directly enable the "Automatic Removal of Overage Inventory" feature or handle it through Amazon's batch clearance program via FBA. Although it will result in a loss, it's better than being charged monthly and then having to pay removal fees. For products in stock for 200-270 days, you can set short-term coupons (20%-30%) and combine them with low-priced advertising to quickly clear them before April 15th.

Action Two: Review "High Return Rate SKUs" and Remove the "Red Card"

During the Spring Promotion, did any of your SKUs get labeled with a "high return rate"? If so, April is the key window to remove this label.

Log into the backend, export the return report for that SKU from the past 30 days, and analyze the reasons for returns one by one. Is it a size issue? Color difference dispute? Functional defect? Or packaging damage? Only by finding the root cause can you prescribe the right remedy.

If it's a size issue, update the size chart with more detailed measurement guidelines; if it's a color difference dispute, change the main image and add more scene-specific photos; if it's a functional defect, contact the factory to improve the product or clear the inventory before removing it from sale. Also, add clear usage instructions and precautions at the top of the Listing to set reasonable expectations for consumers before they place an order. Only by reducing the return rate can the label possibly disappear.

Action Three: Calculate the "Profit Model Under New Rates" to Prevent Costs from Eating into Profits

Starting April 1st, new rates for the Japan site officially took effect: for all products priced over 750 yen, the commission increased by 0.4%; the delivery fee for standard-sized products was reduced. The overage inventory fees and low-volume inventory fees for the US site are also increasing.

It is recommended that you spend half a day recalculating the profit model for your main ASINs. Log into the profit analysis dashboard to see the net profit changes for each SKU under the new rates. For SKUs whose profits are significantly eroded, either adjust the pricing, optimize the cost structure, or stop promoting them.

Especially for sellers on the Japan site, although a 0.4% commission increase is not large, combined with exchange rate fluctuations, it might just eat into your profit margin. Don't wait until next month's reconciliation to realize "why it's less again."

Written at the End

The Spring Promotion has ended, but the cost nodes in April do not wait for anyone.

It is recommended that you run through the inventory report in the backend today, filter out overage inventory; review return data, lock in high return rate SKUs; recalculate the profit model for your main ASINs. Clear what needs to be cleared, optimize what needs to be optimized, and settle the accounts clearly.

Only after completing the spring cleaning can you go into battle lightly, preparing for Prime Day.