In supply chain terms, a “weak link” is any node or process with high variability, low control, and outsized impact on cost or service. It’s the point where carefully orchestrated operations fall apart.
Historically, supply chain managers have focused on common weak links:
- Single-source suppliers vulnerable to disruption
- Congested ports creating bottlenecks
- Limited warehouse capacity during peak seasons
- Fragile IT systems prone to data breaches
But in omni-channel commerce, the final delivery node—where the parcel is physically handed to the shopper—now qualifies as a critical area demanding attention. This is where global supply chains meet individual customers, and where supply chain operations either succeed or fail in the customer’s eyes.
Supply chain teams monitor key metrics like OTIF (On-Time In-Full), NPS scores, WISMO tickets, RTO rates, and damage/loss KPIs. Residential delivery consistently skews these numbers negatively. Front porches, apartment lobbies, and shared mailrooms meet every criterion for a systemic weak link: unpredictable access, zero security, and no standardized processes.