Include all costs associated with carrying and maintaining inventories. They include costs such as obsolescence, deterioration, storage, inventory taxes, and insurance. ... Also called ordering costs. Include costs of placing order, receiving, pricing, and placing goods in stock; and processing payment.
Hope this helped.
Heres 4, pick your favorites haha
.Trying to Keep Up with Others
.Forgetting About the Unexpected
.Using Outdated Software
.Forgetting About the Small Items