What is the True Cost of Failed Deliveries in E-commerce?

The Bottom Line: To maximize Return on Shipping (ROS), retailers must mitigate the $17.20 average cost of failed first-time deliveries while leveraging two-day shipping to capture the 44% of revenue generated by repeat customers.

What is a Failed Delivery?

In modern e-commerce, a failed delivery is any instance where a package fails to reach its destination on the first attempt or within the promised timeframe. While often viewed as a simple logistics "hiccup," for retailers, it represents a breakdown in the last-mile fulfillment chain.

The Magnitude of the Problem

Failed deliveries are not outliers; they are a systemic operational challenge.

• Frequency: Approximately 8% of all domestic first-time deliveries fail, with nearly 25% of businesses reporting that more than 1 in 10 orders fail on the initial attempt.
• The "Last-Mile" Context: This is particularly critical because the last mile now accounts for 53% of total shipping costs.
• The Performance Gap: Up to 20% of packages fail during peak seasons, yet many retailers continue to measure success through narrow logistics metrics rather than the "fully-loaded" cost of failure.

What happens when an e-commerce delivery fails?

Every failed delivery triggers a multi-dimensional crisis that extends far beyond a single missing package. These failures cost the e-commerce industry billions of dollars annually, creating a "ripple effect" that strains every internal department:

• Customer Service Overload: Support ticket volume surges by 210% following peak periods like Black Friday/Cyber Monday¹. On average, each failed delivery triggers 2.3 manual customer service interactions².
• Operational Strain: IT systems often struggle under the weight of "exception management," while warehouse teams are pulled away from new outbound orders to process labor-intensive returns and reshipments.
• Financial Complexity: Billing departments must process refunds and credits at scale, complicating cash flow management and revenue reconciliation.

The Trust Tax: Most critically, customers lose trust. 23% of consumers will never order from a retailer again after a poor delivery experience, while 16% will actively warn their personal networks to avoid the brand³.

Speed vs. Reliability: The Execution Gap

While "fast shipping" is often touted as the ultimate conversion lever, speed without reliability is a high-risk strategy. The pressure to compress delivery windows has created a dangerous misconception: that speed alone guarantees customer satisfaction.

The Reality of Fast-but-Flawed Shipping:

• Negative Feedback Loop: Research from Supply Chain Dive indicates that 27% of fast deliveries still generate negative feedback⁴. If the execution is flawed (e.g., damaged goods, porch piracy, or missed windows), speed cannot compensate for a poor experience.
• The Attribution of Blame: Customers do not distinguish between your brand and the carrier. 41% of consumers place the blame for late or failed deliveries squarely on the retailer⁵. When a "2-day" promise is missed, 69% of customers are less likely to shop with that brand again.
• Peak Season Vulnerability: This problem compounds during high-volume periods. Up to 20% of packages fail on the first attempt during peak season⁶, yet many retailers haven't adjusted their operations to handle this reality.

The Takeaway for RevOps: Measuring success through narrow metrics like "Average Days in Transit" (ADIT) misses the true cost of failure. Reliability is the foundation upon which speed must be built; otherwise, you are simply accelerating the rate at which you lose customers.

What are the hidden costs of failed deliveries?

Rather than focusing solely on transportation line items, successful retailers use a comprehensive framework that captures the total economic impact of the shipping experience. To understand your true "Cost of Failure," you must track these four critical drivers:

Cost Drivers to Track

1. Annual Parcel Spend

Last-mile delivery is no longer just a shipping stage; it is the most expensive part of your supply chain.

• The Surge: Last-mile now accounts for 53% of total shipping costs (up from 41% in 2018)⁷.
• The Growth: This cost has increased 29.3% in five years, growing at an average annual rate of 5.27%⁸.

2. Order Replacement & Reshipment Costs

When a delivery fails, the replacement cost often exceeds the original margin of the sale.

• Direct Impact: With an 8% failure rate, retailers lose an average of $17.20 per failed order⁹.
• Risk Exposure: 24% of businesses report that more than 1 in 10 deliveries fail on the first attempt⁹, leading to compounded financial burdens.

3. Shipping-Related Support Cost (WISMO)

Your CX department's efficiency is directly tied to carrier performance.

• Ticket Volume: "Where Is My Order" (WISMO) inquiries account for 18% of all support tickets¹⁰.
• The Resolution Cost: Each ticket costs between $12–$25 to resolve. During peak season, first response times increase by 210%¹, further inflating these hidden labor costs.

4. Reputation & Churn (The Long-Term Damage)

The most significant costs are often the hardest to recover:

• 23% of consumers have not ordered from the retailer again after a poor delivery experience³.
• 21% lost trust in the retailer and 16% told friends and families to avoid the retailer³.
• 85% of shoppers state they would not return to a retailer after a poor delivery experience¹¹.

Revenue Drivers to Measure

Conversely, delivery excellence acts as a growth engine. If your last-mile execution is reliable, it creates measurable gains in customer behavior:

• Conversion Rate Lift: Optimized last-mile delivery yields an 8.9% improvement in conversion rates¹². Cart abandonment drops by an average of 18% when two-day delivery is clearly displayed at checkout¹³.
• AOV & Basket Size: High-performing delivery leads to a 10.6% increase in Average Order Values (AOV)¹². 93% of shoppers buy more when free/reliable shipping options are available¹⁴.
• The Repeat Purchase Multiplier: Two-day shipping generates 25% higher repeat purchase rates¹³. This is critical because while repeat customers are only 21% of your base, they generate 44% of your revenue¹⁵.
• CLV Protection: Increasing customer retention by just 5% can increase total profits by more than 25%¹⁶. Given that acquiring a new customer costs 6–7x more than retaining one¹⁷, delivery reliability is your best defense against high CAC (Customer Acquisition Cost).

The ROI Calculation Framework

Understanding these cost and revenue drivers is the first step, but the real value lies in quantifying them into a single, actionable metric. To move fulfillment from a "line-item expense" to a "strategic asset," RevOps leaders must shift their focus to Return on Shipping Investment (ROSI).

By using the following framework, you can justify investments in better carrier technology or faster shipping methods by showing exactly how they protect margins and accelerate growth.

The ROSI Formula

To calculate your total return, use this comprehensive equation:

ROS = (Revenue Gains + Cost Savings) ÷ Total Shipping Investment

Where:

- Revenue Gains = (Conversion lift × AOV) + (Retention improvement × CLV)

- Cost Savings = Reduced support tickets + Lower return rates + Fewer reshipments

- Total Investment = Carrier costs + Technology + Packaging + Labor

Calculating your baseline ROI is essential for standard operations, but the true test of a fulfillment strategy occurs when volume scales exponentially. During the "Golden Quarter," the cost of failed deliveries doesn't just grow—it compounds. With brands generating approximately $24.1 billion in US sales during the Black Friday/Cyber Monday window alone, even a 1% improvement in delivery reliability can result in millions of dollars in recovered revenue.

Understanding Peak Season Scale

The numbers tell a stark story:

• Over 90 million people in the US alone shopped online on Black Friday 2023¹⁹
• Cyber Monday sales reached $13.3 billion in 2024, making it the largest online shopping day of all time²⁰
• 79% of Cyber Week ecommerce traffic originated from mobile phones¹⁹‍
• 39% of cart abandonments occur due to unexpected extra costs, while 21% are due to slow delivery times²²

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Pre-Peak Preparation Strategies

To mitigate the $24.1 billion risk mentioned above, successful retailers focus on three pillars of preparation before the first holiday order is placed.

1. Demand Forecasting and Inventory Positioning

Working closely with fulfillment partners during peak preparation meetings allows brands to pre-assemble unique kits and optimize demand planning.

• The Strategy: Use predictive inventory placement to position products closer to anticipated demand centers¹⁸.
• The Impact: This proximity improves two-day delivery rates by 15–20%¹³, directly lowering the risk of late-delivery churn.

2. Multi-Carrier Resilience

Relying on a single carrier during peak is a single point of failure. Multi-carrier management ensures operational resilience by balancing capacity and costs.

• The Strategy: Maintain a diversified carrier mix including global giants and local last-mile specialists.
• The Impact: This creates "fallback protection" during seasonal surges, ensuring that if one carrier hits capacity, your delivery promise remains intact.

3. Technology and Automation Investment

Technology is now the primary driver of peak season efficiency. Chatbot-driven traffic to retail sites surged 1,950% compared to last year during Cyber Monday 2024, helping drive online sales to $13.3 billion²⁰. AI and agents influenced significant volume of Cyber Week orders, accounting for $60 billion in global sales, with retailers using AI-powered agents seeing double the rate of customer service engagement²³

• The Strategy: Deploy AI-powered chatbots and automated exception management to handle the surge in traffic and support inquiries.
• The Impact: Retailers using AI-powered customer service saw a 9% higher conversion rate on Black Friday 2024²⁶ and double the rate of customer engagement compared to those using legacy systems.

During Peak: Real-Time Management

Once the surge begins, the focus shifts from planning to real-time exception management. Successful retailers maintain their ROSI by focusing on these three execution pillars:

1. Precision in Delivery Promises

Vague shipping windows are a primary driver of cart abandonment and WISMO tickets.

• The Strategy: Use machine learning algorithms to generate accurate Estimated Delivery Dates (EDDs) based on real-time variables like inventory location, carrier capacity, and weather conditions.
• The Impact: Providing a precise delivery promise early in the journey improves two-day delivery success rates by 12–18%¹³.

2. Scaling Support Through Automation

With first-response times typically surging by 210% after Black Friday¹, manual support becomes a bottleneck that leads to churn.

• The Strategy: Scale support capabilities using a hybrid of seasonal hires and AI automation. Currently, 85% of high-volume retailers (5,000+ orders/month) lack 24/7 support⁶, creating a massive opportunity for brands that can provide around-the-clock resolution.
• The Impact: Automation helps manage the industry-wide need for 400,000 to 500,000 seasonal support roles while keeping resolution costs low²⁴.

3. Proactive Communication Excellence

Anxiety increases between the "Buy" button and the "Unboxing" moment. Proactive updates prevent the customer from having to reach out first.

• The Strategy: Implement automated, multi-channel notifications (SMS/Email) that trigger at every milestone of the delivery journey.
• The Impact: Currently, only 45% of retailers meet consumer expectations for delivery speed and transparency²⁵. Proactive communication bridges this gap, driving higher satisfaction scores even during transit delays.

Post-Peak: Returns Management

The Returns Surge Reality The return rate reached 10.3% during the 2024 holiday season, up from 7.9% the previous year²¹. Returns peaked the week before Christmas and Boxing Day at 17.7%, up 10% year-over-year²¹.

Turning Returns into Opportunities: You can cut avoidable returns and convert refunds into exchanges or store credits. Smart retailers use returns data to:

• Identify product quality issues
• Improve size charts and descriptions
• Offer instant exchanges over refunds
• Create loyalty through excellent returns handling

Peak Season Success Metrics

To measure the effectiveness of your peak strategy, you must look beyond "delivered on time." Successful retailers monitor a balanced scorecard of delivery performance metrics to optimize their fulfillment operations in real-time.

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Despite massive surges in demand, leading providers achieved click-to-ship averages under 1.14 days—including weekends and overnight¹⁸. By hitting these targets, retailers can see total combined savings of up to 55% on their peak parcel spend through strategic carrier management and reduced failure rates.

The Competitive Advantage

Retailers who master peak season delivery create lasting competitive advantages:

• Brands can see total combined savings of up to 55% on their peak parcel spend through strategic carrier management¹⁸.
• Successful retailers monitor multiple delivery performance metrics beyond simple two-day delivery rates to optimize their fulfillment operations.
• Livestream commerce conversion rates are ten times higher than conventional. ecommerce conversion rates²⁷, showing the power of real-time engagement during peak.

The Bottom Line

Success in modern e-commerce requires measuring delivery performance through both cost and revenue lenses. By leveraging customer journey maps to decrease service costs by 20%²⁰ and viewing the last mile as a growth engine rather than a cost center, retailers can transform fulfillment into a competitive advantage.

To lead in 2026, retailers must:

• Measure what matters: Move beyond postage costs to track ROSI.
• Invest in resilience: Transition to multi-carrier, AI-enabled fulfillment.
• Protect the relationship: Proactively communicate to build long-term trust.

Frequently Asked Questions

What is the average cost of a failed delivery?

Failed first-time deliveries cost retailers an average of $17.20 per order. This figure includes direct costs like reshipment expenses, but doesn't capture the full impact, each failed delivery typically triggers 2.3 customer service interactions, with support tickets costing $12-25 each to resolve.

What percentage of e-commerce deliveries fail on the first attempt?

Approximately 8% of domestic first-time deliveries fail, though this number varies by retailer. Nearly a quarter of businesses report that more than 1 in 10 deliveries fail on the first attempt, making delivery reliability a significant operational challenge.

How do failed deliveries affect customer retention?

The impact is substantial: 23% of consumers never order from a retailer again after a poor delivery experience, while 85% say they wouldn't return after a bad delivery. Additionally, 16% of dissatisfied customers actively tell friends and family to avoid the retailer, amplifying the reputational damage.

What is WISMO and why does it matter?

WISMO stands for "Where Is My Order" and represents one of the most common customer service inquiries. These queries account for 18% of support tickets for the average e-commerce store. Reducing WISMO inquiries through proactive tracking and communication directly lowers support costs and improves customer satisfaction.

How much does last-mile delivery cost as a percentage of total supply chain costs?

Last-mile delivery accounts for approximately 53% of overall supply chain costs, and this proportion has grown significantly, increasing 29.3% over five years at an average annual growth rate of 5.27%.

How can faster delivery improve conversion rates?

Optimized last-mile delivery can improve e-commerce conversion rates by 8.9%. Cart abandonment rates drop by an average of 18% when two-day delivery options are prominently displayed during checkout, and retailers offering two-day shipping report 25% higher repeat purchase rates.

What's the best way to calculate return on shipping investment?

Use the ROS formula: (Revenue Gains + Cost Savings) ÷ Total Shipping Investment. Revenue gains include conversion improvements multiplied by average order value, plus retention improvements multiplied by customer lifetime value. Cost savings come from reduced support tickets, lower return rates, and fewer reshipments.

How should retailers prepare for peak season delivery challenges?

Focus on three areas: demand forecasting with strategic inventory positioning closer to anticipated demand, multi-carrier resilience to ensure backup capacity during surges, and technology investment in AI-powered customer service and accurate delivery promise systems. Retailers who invest in predictive inventory placement typically see 15-20% improvements in two-day delivery rates.

What delivery metrics should e-commerce retailers track?

Key metrics include first-attempt delivery rate (target above 92%), click-to-ship time (target under 24 hours), support response time (target under 2 hours), cart abandonment rate (target below 60%), and mobile conversion rate (target above 2%). Track both cost drivers and revenue drivers to get a complete picture of delivery performance.

Why do customers blame retailers instead of carriers for delivery problems?

Research shows 41% of consumers place blame for late deliveries on retailers rather than shipping carriers. When customers see delivery promises at checkout, they associate that commitment with your brand, not the third-party carrier actually transporting the package.

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Reference

1. Ecommerce Fastlane. (2022). "The State Of The Ecommerce Customer Service Industry Report." Retrieved from https://ecommercefastlane.com/the-state-of-the-ecommerce-customer-service-industry-report/
2. Pegasus Couriers. (2025). Cost of Failed Deliveries Explained | Billions Wasted Annually. https://pegasuscouriers.co.uk/2025/08/cost-of-failed-deliveries/
3. Radaro. (2024). "What do Failed Deliveries Cost Your Business?" Retrieved from https://radaro.com/en-us/efficiency-insights/cost-of-failed-deliveries/
4. Veho. (2025). The Hidden Costs of Delivery Failures (and How to Avoid Them This Peak Season). Veho Blog. https://www.shipveho.com/blog/the-hidden-costs-of-delivery-failures-and-how-to-avoid-them-this-peak-season
5. Chain Store Age. (2021, March 9). Survey: As e-commerce grows, so do delivery problems. Chain Store Age. https://chainstoreage.com/survey-e-commerce-grows-so-do-delivery-problems
6. Harvard Business Review. (2023, November 28). Research: Why So Many Packages Don't Get Delivered. Harvard Business Review. https://hbr.org/2023/11/research-why-so-many-packages-dont-get-delivered
7. Cascadia. (2024, January 31). Share of last-mile delivery costs out of total shipping costs in 2018 and 2023. Statista. https://www.statista.com/statistics/1434298/last-mile-share-of-total-shipping-costs/
8. Capital One Shopping. (2025). "eCommerce Delivery Statistics (2025): Trends & Latest Data." Retrieved from https://capitaloneshopping.com/research/ecommerce-delivery-statistics/
9. Loqate. (2021, March 9). Fixing Failed Deliveries 2021: Stamping Out Faulty Fulfillment. Research conducted by Censuswide, December 2020. Survey of 304 retail executives and 3,040 consumers. https://chainstoreage.com/survey-e-commerce-grows-so-do-delivery-problems
10. Gorgias. (2023, November 13). What's The Secret to Reducing WISMO Requests? https://www.gorgias.com/blog/automate-wismo-requests
11. FarEye. (2022, July 18). FarEye Study Says Retailers Risk Losing 85% of Online Shoppers Due to Poor Delivery Experience. https://www.businesswire.com/news/home/20220715005443/en/FarEye-Study-Says-Retailers-Risk-Losing-85-of-Online-Shoppers-Due-to-Poor-Delivery-Experience
12. Supply Chain Dive. (2024, April 22). The last mile: Your first critical step to delivering cost savings and profit. Sponsored by Veho. https://www.supplychaindive.com/spons/the-last-mile-your-first-critical-step-to-delivering-cost-savings-and-prof/713555/
13. RedStag Fulfillment. (2025). "Ecommerce Delivery 2025: What Percentage Arrive in 2 Days?" Retrieved from https://redstagfulfillment.com/what-percentage-of-ecommerce-parcels-are-delivered-within-two-days/
14. Invesp. (2017, January 5). How Free Shipping Influence Online Buying Decisions. https://www.invespcro.com/blog/free-shipping/
15. Gorgias. (2023, November 21). Repeat Customer Rate: Your Guide to Track & Improve the Metric. Gorgias Blog. https://www.gorgias.com/blog/repeat-customer-rate
16. Gallo, A. (2014, October 29). The Value of Keeping the Right Customers. Harvard Business Review. https://hbr.org/2014/10/the-value-of-keeping-the-right-customers
17. SignalMind. (n.d.). Cost of Acquiring New Customers vs. Retaining. https://www.signalmind.com/infographics/cost-acquiring-new-customers-vs-retaining
18. Stord. (2024). "Black Friday Cyber Monday Performance Report - 2024." Retrieved from https://www.stord.com/blog/peak-performance-report-2024
19. Tidio. (2024). "Black Friday Facts & Cyber Monday Stats [Report 2024]." Retrieved from https://www.tidio.com/blog/black-friday-trends/
20. Adobe. (2024, December 3). Cyber Monday Hits Record $13.3 Billion in Online Spending. https://news.adobe.com/news/2024/12/120324-adi-cyber-monday-recap
21. Queue-it. (2025). "149 Black Friday Statistics Every Retailer Should Know 2025." Retrieved from https://queue-it.com/blog/black-friday-statistics/
22. Baymard Institute. (2025). Cart Abandonment Rate Statistics. https://baymard.com/lists/cart-abandonment-rate
23. Salesforce. (2024, December 3). Salesforce Data Reveals New Cyber Week All-Time High. https://www.salesforce.com/news/press-releases/2024/12/04/cyber-week-ai-sales/
24. National Retail Federation. (2024, October 15). Steady Sales Growth Expected for 2024 Holiday Season, According to NRF. NRF Media Center. https://nrf.com/media-center/press-releases/steady-sales-growth-expected-2024-holiday-season-according-nrf
25. Opensend. (2025). "7 On-time Delivery Rate Statistics For eCommerce Stores." Retrieved from https://www.opensend.com/post/on-time-delivery-rate-statistics-ecommerce
26. Retail Dive. (2024, November 30). Winners and losers of Black Friday 2024. https://www.retaildive.com/news/winners-losers-black-friday-2024-online-store-sales/734236/
27. Toptal. (2024). "Ecommerce Conversion Rates for 2024." Retrieved from https://www.toptal.com/external-blogs/growth-collective/ecommerce-conversion-rates
28. The Pedowitz Group (2025, July 18). Customer Journey Mapping: Build (Or Update) Yours The Right Way. Retrieved from https://www.pedowitzgroup.com/blog/customer-journey-mapping

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