Hello @Seller_zoNqmROYnYO1S,

Thank you for your question about FBA customer replacement requests. Here's how the process works:

When a customer requests a replacement for an FBA item:

1. The customer initiates the replacement request through their account
2. Amazon automatically processes the request if it meets our criteria
3. A new item is shipped from the nearest fulfillment center to the customer
4. The customer has 30 days to return the original item using the provided return label
5. If the original item isn't returned within 30 days, the customer will be charged for the replacement

As a seller, you should know:

1. The replacement cost is covered by Amazon if the item is damaged/defective upon arrival
2. You can track these requests in your Returns Report in Seller Central
3. Inventory is automatically adjusted in your FBA stock
4. The customer receives the replacement before returning the original item

For detailed metrics on your replacements, visit Reports > Fulfillment in Seller Central. And for further questions, feel free to contact Seller Support.

Jurgen