5. Order defect rate, important
Order defect rate (ODR) comprises of three different metrics: negative feedback rating, A-Z guarantee claim rate and service chargeback rate.
Amazon calculates these three metrics to find out the number of orders which were defective. According to Amazon, the ODR should be below 1% and any sellers above this will be penalised.
6. Valid tracking rate, important
This is a new performance metric from Amazon, which is the percentage of total packages shipping with valid tracking.
Valid tracking rate is considered on the basis of the last seven and 30 days.
In order to protect your Buy Box eligibility, valid tracking numbers should be provided for 95% of packages shipped. Anything less than this could affect their chances of winning the Buy Box and even selling in a certain category.
7. Late shipment rate, important
Late shipment rate is the number of orders shipping later than the expected ship date. You can set your handling time in Seller Central, sellers who don’t will be given the default shipping time of 1-2 business days.