Expired Product (Invalid Expiration Date) Chargeback Hard Launch
As previously announced, Amazon had introduced a new chargeback sub-type which was supposed to go into effect in March. However, they delayed this introduction and have now chosen July 10th, 2020 as its official launch date. Up until this point, it was in a 'soft launch' phase which meant you could still see which of your products this chargeback would have applied to without actually getting charged.
Per Amazon,
The Invalid Expiration Date chargeback is a new sub-type within the existing ASN (Advanced Shipment Notification) Accuracy chargeback, and is applicable to products that require expiration dates in these categories: Luxury Beauty, Beauty, Pantry, Grocery, Baby, Health and Personal Care, Personal Care Appliances and Private Brands (excluding Amazon Fresh/Prime Now/Amazon Go).
The chargeback is triggered if the expiration dates listed on the ASN at time of receive are 1) in the past, 2) too close to the receive date or 3) too far in the future.
The chargeback use cases and the fee structure are detailed in the Help topic under Support > Help > Vendor Operational Performance > Chargebacks - Problems With ASN > About ASN Accuracy.