2026-06-11 · 10 min read
Amazon A-to-Z Guarantee: What Sellers Need to Know to Protect Themselves
How Amazon's A-to-Z Guarantee works from the seller's side, how to defend against incorrect claims, and how to prevent the disputes that hurt Account Health.
Amazon's A-to-Z Guarantee lets buyers get refunds when a product does not arrive, arrives damaged, or significantly differs from the listing description. From the buyer's side, it is a consumer protection tool. From the seller's side, it is a risk that affects Order Defect Rate (ODR), which is a key Account Health metric. Sellers with ODR above 1% risk account suspension.
How A-to-Z claims work
A buyer can file an A-to-Z claim after the estimated delivery date passes without delivery, or after requesting a return or refund through the normal return process and not receiving resolution within 48 hours. When a claim is filed, Amazon notifies you by email and in Seller Central.
You have 48 hours to respond to the claim. If you do not respond, Amazon typically grants the refund automatically and charges the cost to your account. If you respond with documentation, Amazon reviews both sides and makes a decision.
Impact on Account Health
Every A-to-Z claim that is granted counts against your Order Defect Rate, whether you agree with the claim or not. If Amazon rules in the buyer's favor, the claim goes on your ODR. If you successfully dispute the claim and Amazon rules in your favor, it does not count. ODR is a rolling 60-day metric, so a cluster of A-to-Z claims in a short period can spike your rate quickly.
Amazon's Account Health page in Seller Central shows your current ODR and a history of claims. A single seller account can sustain roughly 1 A-to-Z claim per 100 orders before hitting the 1% threshold.
Defending against incorrect A-to-Z claims
Not all A-to-Z claims are legitimate. Common scenarios where sellers win appeals:
The order was delivered. If tracking shows confirmed delivery and the buyer claims non-delivery, upload your tracking information in the claim response. Include the carrier name, tracking number, and the confirmed delivery scan. Amazon generally sides with confirmed delivery data over a buyer's denial.
The buyer already received a refund or return. If you already issued a refund through the normal return process before the claim was filed, provide the refund transaction ID in your response. Amazon will close the claim without granting a second refund.
The item matches the listing description. If a buyer claims the product "significantly differs," document how your listing description matches what was shipped. Include photos of your product matching the listing images and description. If the buyer's concern is a preference issue rather than a genuine material difference, Amazon often sides with the seller.
The return was not sent back. If a buyer claimed a refund for a return but never shipped the item back, you are not obligated to issue a full refund. Document the empty return or the absence of a tracking number on the return.
What to include in your response
Your claim response should be factual and brief. Include: the order ID, the tracking number and delivery confirmation, any communication between you and the buyer (if sold FBM), documentation of any refund already issued, photos of the product and packaging if relevant to the dispute. Avoid emotional language or arguments about the buyer's character. Present evidence and let Amazon evaluate it.
Prevention strategies
Most A-to-Z claims arise from three causes: late or missing deliveries, product condition issues, and listing inaccuracies. FBA eliminates carrier and delivery issues since Amazon handles fulfillment and bears responsibility for FBA delivery failures. For FBM sellers, using tracked shipping on every order and over-communicating tracking information to buyers reduces non-delivery claims significantly.
For listing accuracy, review your product images and description annually against the actual product you are shipping. Products that evolve slightly over supplier iterations sometimes drift from original listing descriptions. A buyer who receives the new version when the listing shows the old version has a legitimate claim.
Respond to buyer messages within 24 hours. Most A-to-Z claims can be resolved through direct communication with the buyer before they escalate to a claim. Amazon requires sellers to respond to buyer messages within 24 hours and rates this in Account Health metrics as well.