According to Amazon's regulations, for products shipped by sellers themselves, the delivery time cannot exceed 90 days. If the goods have not been shipped for more than 90 days, the buyer can apply to cancel the order and get a full refund. In addition, Amazon also requires sellers to update the order status in time after the order is shipped so that buyers can track the progress of the order. If the seller does not update the order status in time, he may be warned or punished by Amazon. Therefore, as a seller, we need to pay attention to comply with Amazon's shipping regulations, ensure timely delivery and update the order status to improve buyer satisfaction and trust.