How Stockouts Impact Freight Cost

Presented at Home Delivery World 2021 Before beginning it is important to define two different types of stockouts in a network with multiple distribution centers 1 Local Stockouts Out of...

Presented at Home Delivery World 2021

Before beginning, it is important to define two different types of stockouts in a network with multiple distribution centers:

1) Local Stockouts: Out of stock at the “best” or closest distribution center to the customer but in-stock in other distribution centers across the networ

2) Global Stockouts: Out of stock at all distribution centers in the network

There is obviously a cost to global stockouts which is fairly straightforward to understand, but there is also a dramatic cost to local stockouts. Based on experience with our customers, the measurable cost of a local stockout in a national, multiple distribution center network consists of the below, (this does not account for costs associable to intangibles such as diminished brand reputation or customer lifetime lost value): 

• 20% of order lines ship from non-local distribution centers 

• 15% of orders have 2+ shipments due to splits caused by the local stockout

• 2.5 additional zones are traveled on average for non-local shipments at a 20-25% freight cost premium

• 1.8 days of additional delivery time is added on average

• 14% of total outbound freight cost is attributable solely to the local stockout

One option commonly seen to minimize the effects of local stockouts is to ship material from one facility that has the needed inventory to the facility closest to the customer.  However, this approach will significantly increase freight costs, transit time / distance, and shipment counts per order, as well as causing higher rates of damage and return. The below details 4 different strategies for managing a multi-line order and an approach we would recommend using. This can also be seen in the graphic below or in the full presentation here

1) Ship Complete

• Minimizes shipments / DC labor

• Can result in holding partial orders for long periods

2) Ship Each Line from Closest DC

• Ensures fastest average delivery of all line items

• Can result in many customer shipments over many days

3) Least Freight Cost

• Calculates freight cost of all combinations, choosing least cost method

• Does not consider delivery speed or number of shipments

4) Economic Service Model (Hydrian recommendation)

• Assigns cost to service outcomes (e.g. speed / # shipments) as well as freight

• Results in overall lowest cost based on factors enterprise values most

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