Peak Season Is Putting Exception Management to the Test

Peak season has a way of exposing last-mile delivery systems that were already under strain. 

For retail and e-commerce brands navigating one of the year’s busiest periods, the biggest issues often show up in exception management. This is where missed delivery attempts, routing errors and address mistakes become increasingly more visible as order volume rises. Also revealed during peak is how well brands and their last-mile delivery partners identify, communicate and resolve disruptions that naturally arise alongside orders. 

Companies typically measure peak delivery performance based on speed, cost and on-time rates. While valuable, these metrics don’t accurately capture what customers experience when a delivery goes wrong. But customer satisfaction isn’t just dependent on whether an order is on time, but also on how a brand manages a customer’s expectations when disruptions occur.

During peak, exception management becomes a critical driver of how brands build customer trust, support costs, and achieve delivery reliability. 

Last-mile networks are optimized for successful deliveries. The stress of peak season comes from the unsuccessful deliveries (or the exceptions) that occur. Missed deliveries, address and access issues, capacity constraints and failed handoffs are expected to some degree. But the impact of these exceptions depends on how quickly they’re identified and resolved.

At this point in the season, many operations teams are already experiencing higher exception volumes. This means that customer-facing issues may be rising. Suddenly there are more WISMO (Where Is My Shipment?) inquiries and support tickets, even though on-time delivery rates may remain stable.

An existing gap can widen when a brand’s operational performance is maintained, but customer perceptions aren’t. A network might appear efficient in reporting, while customers experience delays and confusion. It’s a reality that reinforces why there needs to be exceptions coordination between brands and last-mile providers. 

Last-mile providers are responsible for identifying and resolving delivery exceptions, maintaining accurate tracking and minimizing disruptions, while brands set delivery promises, manage customer communications and choose logistics partners that match their service expectations. When these responsibilities aren’t aligned, the system breaks down and customers feel it. 

Exception management isn’t equal among last-mile delivery providers. When vetting potential last-mile partners, brands need to consider the accuracy of their delivery updates, their ability to sustain performance under peak volume, and how often issues become visible to customers.

Providers may appear similar on the surface, but critical differences come to light when they’re put under pressure. Brands should be on the lookout for a potential partner’s reliance on manual exception workflows. This includes how their internal tracking checks, carrier outreach, delay updates and ticket-based resolution processes are handled. 

As order and exception volumes rise, manual coordination can create avoidable bottlenecks that slow response times and reduce visibility across the entire delivery network. That’s bad news for operations, reliability, and customer trust. The good news is that brands still have time to act. 

Evaluating last-mile partners during peak season and beyond requires brands to look beyond traditional delivery metrics. Brands need to assess how well potential providers perform under pressure, when volumes and disruptions rise. Brands should ask: 

• How quickly are exceptions detected and resolved? 
• How automated are those exception workflows?
• When (and how quickly) are retailers notified of issues?
• How does delivery performance hold during peak demand?
• How frequently do exceptions become customer-visible failures? 

For brands, the answers to these questions can highlight opportunities to strengthen delivery operations before the next peak cycle. 

While retailers own the customer relationship, their delivery experience is heavily shaped by how disruptions are handled behind the scenes. During peak season especially, that capability determines whether a customer’s delivery experience builds trust or erodes it.

For retailers navigating peak season today, the organizations that identify and resolve disruptions quickly will be the ones that protect customer trust, reduce support burden and maintain consistent performance through the remainder of the season.

In peak season, delivery performance is defined by more than on-time rates — it’s also about how effectively exceptions are managed when they inevitably occur. And once peak season ends, the lessons learned from today's exceptions should inform how retailers evaluate and strengthen their last-mile networks for the year ahead.

Josh Haun is vice president of business development at UniUni.