Best-By Date vs Use-By and Sell-By: Which Dates Fulfillment Should Prioritize

Best-By Date A date printed or labeled on a carton or product to communicate the event or time reference described by 'Best-By Date'. Understanding how that marker differs from other date labels is essential for operational accuracy and contract compliance in fulfillment and distribution.

Supply-chain teams encounter several date marks on products. Retailers and consumers sometimes use the terms interchangeably, but each label has a different operational meaning and consequence. Choosing which date to prioritize—best-by, use-by, or sell-by—depends on product risk, customer agreements, and regulatory context.

Quick Definitions And Regulatory Context

• Best-By Date: Indicates when the product should be at peak quality. Usually a manufacturer recommendation, not a hard safety deadline.
• Use-By Date: Often reserved for highly perishable items; for some products it may imply the last day recommended for safe consumption.
• Sell-By Date: A retailer-focused instruction indicating how long the product should be displayed for sale; not a direct indicator of safety or peak quality for consumers.

U.S. federal agencies do not require uniform quality dates across all foods; only certain products (e.g., infant formula) have strict date-labeling rules. That leaves manufacturers and retailers to set policy, so fulfillment operators must follow client contracts and retailer service-level agreements (SLAs).

Which Date Should Fulfillment Centers Prioritize?

Fulfillment centers should prioritize based on three criteria: regulatory risk, contractual obligations, and product perishability. For high-risk perishable goods prioritize safety-driven dates (use-by). For shelf-stable goods prioritize the date the retailer enforces (often sell-by or best-by). Most food-focused warehouses adopt a hierarchy: safety dates first, then retailer minimum remaining shelf-life, then best-by quality guidance for promotions.

How To Implement Date Prioritization

• Policy Mapping: Maintain a ruleset mapping SKU categories to date-priority (e.g., dairy = use-by, cereal = best-by).
• WMS Configuration: Configure the WMS to tag lots with date type, capture actual date codes at receiving, and enforce FEFO picks for date-sensitive categories.
• Contract Compliance: Encode retailer SLAs as hard constraints (reject shipments that fail minimum remaining shelf-life) rather than as soft suggestions.

Common Operational Scenarios

Scenario 1 — Mixed Pallets: A shipment contains items with different date labels. The receiving clerk scans and records the dates; the WMS assigns the goods to storage zones and picking queues based on the strictest relevant date for each SKU.

Scenario 2 — Retailer Minimum Remaining Shelf-Life: The retailer requires 120 days remaining. Even if the manufacturer's best-by is 150 days, an item with only 100 days remaining must not be shipped to that retailer; it may be routed to another buyer, a promotion, or donation.

Reporting And KPIs To Monitor

• Date Compliance Rate: Percentage of outbound orders that met customer minimum remaining shelf-life requirements.
• FEFO Pick Accuracy: Rate at which the WMS selected the correct lot based on expiration/quality date.
• Markdown & Waste Costs: Value of product discounted or destroyed due to approaching or passed dates.

Practical Example

A beverage supplier ships three SKUs to a retailer: two with best-by dates and one with a use-by. The retailer requires at least 60% remaining shelf-life on arrival. The fulfillment center’s policy places the use-by SKU in a high-priority FEFO queue and enforces stricter inspection for temperature history. The WMS blocks shipments of the use-by lot if cold-chain records are incomplete, reducing safety risk and contract exposure.

In short, the Best-By Date is one component of a multi-label ecosystem. Fulfillment operations must distinguish best-by from use-by and sell-by labels, set clear prioritization rules in their WMS, and align with retailer SLAs to avoid rejections, chargebacks, and waste.