Cold chain WMS requirements
Operating cold chain for pharma, vaccines, or food without a WMS designed for temperature is a regulatory gamble. Here are the critical technical requirements.
Cold chain means a product — vaccines, biological drugs, meat, dairy — stayed between 2°C and 8°C (or -20°C, or -70°C depending on the case) at every step. A 15-minute excursion can invalidate an entire lot. A WMS for cold chain must support this natively.
Temperature zones in warehouse layout
The physical warehouse must divide into zones: ambient, refrigerated (2-8°C), frozen (-18°C), ultra-frozen (-70°C). The WMS must know each zone and reject locations incompatible with the product.
IoT sensor integration
Temperature data loggers connected to the WMS via API or MQTT send readings every minute. The WMS associates each reading with the zone and lot, creating a permanent historical record.
Alarms and escalation
If temperature leaves range, the WMS must immediately alert the zone responsible. If unanswered in X minutes, it escalates to the manager. And if it persists, it blocks the lot automatically.
Regulatory audit reports
ANVISA (Brazil), INVIMA (Colombia), DIGEMID (Peru), ARCSA (Ecuador), and FDA (USA/Puerto Rico) require historical temperature reports per lot. The WMS must export them without a technician manually downloading CSVs from each sensor.
Training and procedures
Technology is 50%. The other 50% is training staff to follow SOPs (standard operating procedures) and respond to alarms. A serious WMS ships SOP templates aligned with each country's regulations.
P4 Warehouse has active cold chain deployments in pharmaceutical distribution in Panama, Colombia, and Ecuador, with direct integration to Zebra and Sensitech data loggers.