Shipping Fundamentals in Fulfillment

Shipping is the final operational step in Order Processing and at the same time the most visible one for the end customer. Whether an order arrives on time, complete, and undamaged determines customer satisfaction, return rates, and long-term loyalty. Those who view shipping merely as "taking a package to the post office" overlook its strategic importance: shipping costs often account for 15 to 30 percent of total fulfillment costs, Logistics Provider selection influences delivery times and delivery success rates, and a well-designed shipping process relieves warehouse, support, and accounting alike.

This guide explains the shipping fundamentals in the fulfillment context: what role shipping plays in the overall process, which shipping methods and service levels exist, how costs arise, and which metrics you need for control – regardless of whether you ship from your own warehouse or work with a fulfillment service provider.

Why Shipping Is Critical in Fulfillment

Shipping connects warehouse and customer. After pick and pack, you hand the shipment over to a carrier who handles the Last Mile Delivery. In this phase you have less direct influence – which is why all upstream steps must be right: correct address, suitable packaging, proper shipping label, selected tariff, and timely handover before the cut-off time.

Shipping affects three central business goals:

Customer experience – Delivery time, tracking transparency, and delivery quality shape reviews and repeat purchase rates
Economic efficiency – Tariff selection, package size, and shipment volume determine shipping costs per order
Operational stability – Clear processes and carrier SLAs prevent bottlenecks during peak seasons

Important: The customer does not evaluate your warehouse, but the outcome: Did the shipment arrive on time? Was tracking understandable? Was the packaging intact? Shipping is therefore both marketing and operations.

Shipping in the Pick-Pack-Ship Process

Shipping is the final phase of the proven Pick-Pack-Ship workflow. Only when picking and packing are complete does the actual shipping process begin: labeling, franking, handover to the carrier, and tracking activation.

Typical shipping workflow in the warehouse:

Weigh packed shipment and check dimensions
Select suitable shipping tariff and carrier
Create and attach shipping label
Book shipment in system and generate tracking number
Hand over shipment to carrier pickup or drop-off point
Send shipping confirmation to customer and shop system

Those who want to optimize the shipping process must consider pick, pack, and ship together. Packaging that is too large increases shipping costs, an incorrect address delays delivery, and late handovers after the cut-off time push delivery back by one business day.

Shipping Process in Fulfillment

1

Weigh

2

Select tariff

3

Print label

4

Book in system

5

Carrier handover

6

Customer notification

Shipping Methods at a Glance

In e-commerce fulfillment, the primary distinctions are delivery speed, shipment size, and geographic reach. The choice of shipping method depends on customer expectations, product characteristics, and economic boundaries.

Shipping method

Delivery time

Typical use

Cost factor

Standard shipping

2–4 business days

Regular shop orders, free-shipping thresholds

Low to medium

Express shipping

1 business day

Premium customers, time-critical items

High

Same-day / Next-Day Service

Same or next day

Groceries, fashion, urban markets

Very high

Economy / Tracked

3–10 business days

Small items, letter mail, price-sensitive goods

Very low

Bulky goods / Pallet shipping

Individual

Furniture, machinery, large appliances

Individually calculated

Standard Shipping as the Foundation

Standard shipping is the backbone for most online shops. It offers a balanced ratio of cost and delivery time. Cut-off times are decisive: orders received by 2:00 p.m. leave the warehouse the same day – after that, shipping is delayed.

Express and Premium Shipping

Express options are justified when customers are willing to pay for them, or when marketplaces specify certain SLAs. Every minute counts here: pick prioritization, dedicated packing stations, and guaranteed carrier pickups are essential.

International Shipping

Cross-border shipments require additional planning: customs declaration, HS codes, Incoterms, and longer transit times. Those scaling internationally should structure shipping zones and carrier networks early.

Carriers and Shipping Partners

A carrier (parcel service) handles transport and delivery. In German e-commerce, DHL, DPD, GLS, Hermes, and UPS dominate. Carrier selection influences reach, prices, tracking quality, and returns processing.

Criteria for carrier selection:

Coverage – Domestic, EU, worldwide; urban vs. rural
Pricing model – Tiered prices by volume, surcharges for islands or oversized parcels
Service level – Delivery success rate, complaint management, returns processes
Technical integration – API interfaces for label printing and tracking events
Flexibility – Pickup times, parcel lockers, store delivery, forwarding

Carrier Usage in E-Commerce (Germany)

DHL

approx. 55% market share

DPD

approx. 18% market share

GLS

approx. 12% market share

Hermes

approx. 10% market share

Other

approx. 5% – trend toward multi-carrier strategies

Single-Carrier vs. Multi-Carrier

Many retailers start with one carrier and later switch to a multi-carrier strategy: depending on shipment size, destination region, or service level, the cheapest or fastest carrier is automatically selected. This reduces costs but increases complexity in Warehouse Software and shipping software.

Understanding Shipping Costs

Shipping costs consist of several components. Those who do not know them miscalculate free-shipping offers or underestimate the margin per order.

Cost factor

Impact

Optimization lever

Base postage / tariff

Base price per shipment and weight class

Volume negotiation, tariff comparison

Volumetric weight

Billing based on the greater of weight and volume

Reduce package size

Surcharges

Islands, oversized, hazardous goods, cash on delivery

Define rules in WMS

Return label

Costs for pre-paid return shipments

Reduce return rate, B-stock processes

Packaging material

Cartons, fill material, tape

Standard sizes, just-in-time procurement

Calculating Volumetric Weight Correctly

Carriers calculate volumetric weight using the formula: (length × width × height in cm) / divisor. If volumetric weight exceeds actual weight, the higher value is billed. Therefore, every centimeter saved in packaging pays off – it directly affects shipping costs.

Tip: Always calculate shipping costs based on the average shopping cart, not the lightest item. Free shipping from 49 euros can be profitable – or destroy the margin if average shipping costs 6.80 euros.

Metrics and Control

Shipping can be measured. These KPIs belong in every fulfillment dashboard:

Shipping cost per order – Total shipping costs divided by number of shipped orders
On-time shipment rate – Share of shipments that leave the warehouse before the cut-off time
First-attempt delivery rate – Share of successful first delivery attempts without investigation
Average transit time – Days from carrier handover to delivery
Shipping return rate – Share of shipments that come back as returns

Warning: A high on-time shipment rate in the warehouse is of little use if the carrier regularly delivers late. Measure the entire chain – from label printing to proof of delivery.

Checklist: Setting Up the Shipping Process

Before the first regular shipment, the following points should be completed:

Carrier contract signed and tariffs configured
Shipping software or WMS integration for label printing set up
Package sizes defined and available at the packing station
Cut-off times communicated in the shop and implemented in the warehouse
Address validation active in the order process
Tracking events connected to shop and customer email
Returns process with label option defined
Shipping costs included in price calculation
Escalation path for delivery problems established
Shipping KPIs configured in reporting

Avoiding Common Mistakes

These mistakes occur particularly frequently in day-to-day shipping:

Wrong tariff selection – Economy instead of standard or vice versa; surcharges not considered
Address errors – Typos, missing house number, incomplete parcel locker details
Delayed carrier handover – Shipments sit in the warehouse although the label has already been created
Missing tracking communication – Customer receives no shipping confirmation or unclear status messages
Underestimated volumetric weight – Oversized cartons drive up costs and create damage-prone empty spaces

Frequently Asked Shipping Questions

When does multi-carrier become worthwhile?
From approximately 500 shipments per month, the effort for a multi-carrier strategy is usually worthwhile.

Who bears shipping costs for returns?
Cost allocation depends on the retailer's returns policy.

What happens if delivery fails?
Initiate an investigation with the carrier and proactively inform the customer.

How do I reduce shipping costs?
Optimize packaging, negotiate tariffs, and choose suitable shipping methods per order type.

Do I need shipping software?
From 50 or more shipments per day, dedicated shipping software is strongly recommended.

Shipping and Customer Expectations

Modern customers expect transparent delivery times, proactive tracking updates, and flexible delivery options. Those who meet these expectations reduce support inquiries and increase the likelihood of repeat purchases. Those who miss them pay with poor reviews and high return rates.

Communication before purchase is decisive: realistic delivery time information at checkout, clear shipping costs, and honest cut-off notices build trust. After shipping, tracking and proactive notification in case of delays take over.

From Purchase to Delivery

1

Order

2

Payment received

3

Pick

4

Pack

5

Label

6

Carrier scan

7

Transit

8

Delivery

Shipping Fundamentals