This changes how your inventory is stored and shipped.
Previously, Amazon pooled identical products from multiple sellers into one shared bin.
A customer could order your product and receive a unit that another seller shipped.
Same ASIN, different seller, and potentially different quality.
If that unit had a defect, the negative review landed on your listing.
After March 31, resellers must apply FNSKU labels on each FBA unit. Brand Registry owners with manufacturer barcodes are exempt.
Your inventory gets its own space. The unit a customer receives is the one you sent.
This is a win for brand owners.
Another seller's bad product can no longer end up in your customer's box. Your reviews stay clean.
However, resellers face a new cost.
FNSKU labeling adds $0.20 to $0.55 per unit, depending on your prep setup.
With FBA prep services discontinued, that cost falls on you or your 3PL.
A reseller moving 10,000 units per month now carries $2,000 to $5,500 in new overhead.
The prep cost is measurable. The brand protection is worth the cost.
Will your current margins absorb the new labeling fee?
