This is a stock-accuracy case far more often than a fulfilment one.
Amazon reads seller-initiated cancellations as selling something you did not have, so this is usually a stock-accuracy problem rather than a fulfilment one. Amazon expects under 2.5%, or 0.5% for Seller Fulfilled Prime. Buyer cancellations do not count against you. The usual root cause is overselling, and the appeal has to name which kind.
The Pre-Fulfilment Cancellation Rate counts seller-initiated cancellations before shipment. Cancellations the buyer requests do not count against you — which matters, because sellers regularly appeal this metric while describing buyer behaviour.
If you cancelled it, you accepted an order you could not fill. There are only a few mechanisms behind that, and they are specific:
Five tools that take you from the notice to one properly prepared appeal — a Plan of Action builder that checks your wording against known rejection triggers, a 48-hour checklist, three worked examples, and a 90-day money plan. $149, one payment.
Get the kit — $149Not affiliated with Amazon. Not legal advice. No tool or service can guarantee reinstatement — Amazon makes that decision. If large sums are frozen, if you are accused of counterfeiting or a safety breach, if you have been rejected more than once, or if your notice cites Section 3, get a lawyer who specialises in Amazon seller cases.
Where Amazon's own wording is quoted it is marked as such. Practitioner guidance is labelled as practitioner guidance. Where sources disagree, this says so rather than picking one.