GDP — Good Distribution Practice

Good Distribution Practice (GDP) is the set of quality requirements that govern how medicinal products are procured, stored, transported and distributed so that their identity, integrity and traceability are maintained from the manufacturer to the dispensing point. In the European Union, GDP is laid down in published guidelines that apply to wholesale distributors of human medicines and, by extension, to logistics service providers handling such goods. For companies running an ERP or warehouse management system, GDP shapes how temperature data, batch records and audit evidence must be captured. It is part of the broader family of GxP quality regimes in regulated industries.

Purpose and scope

GDP exists to ensure that the quality and integrity established during manufacture is not lost during distribution. It covers the entire path a medicinal product travels after it leaves the production site: storage, order picking, transport, returns and the handling of suspected falsified products. The standard addresses both the physical conditions of distribution, such as temperature control, and the organisational controls around it, including qualified personnel, documented procedures and a functioning quality system. While GDP originates in EU pharmaceutical legislation, comparable expectations exist in other jurisdictions, and many wholesalers and 3PL providers in the DACH region must demonstrate compliance to hold a wholesale distribution authorisation.

Core requirements

The guidelines set expectations across several areas that frequently touch the IT systems used to run a distribution operation:

• A documented quality management system with defined responsibilities and change control.
• Qualification of premises and equipment, including validated temperature mapping of storage areas and vehicles.
• Continuous monitoring and recording of temperature for cold-chain and ambient products.
• Full batch and lot traceability so that any unit can be located and recalled.
• Controlled handling of returns, complaints, recalls and suspected falsified medicines.
• Qualification of suppliers and customers before trading.

These requirements mean that batch traceability and reliable records are not optional add-ons but core operational obligations.

Role of ERP and warehouse systems

Distribution software supports GDP by enforcing batch and expiry-date control, recording goods movements, and linking each shipment to documented storage conditions. A warehouse management system typically manages location-level stock, first-expiry-first-out picking and quarantine zones for returns or holds, while temperature data may flow in from monitoring sensors. The system should produce an unalterable audit trail of who did what and when, which inspectors rely on during audits. Because GDP places strong emphasis on data integrity, the underlying records must be attributable, legible, contemporaneous, original and accurate. Where electronic records replace paper, organisations often also consider computerised system validation to demonstrate that the software performs reliably for its intended use.

Relationship to other standards

GDP is the distribution-stage counterpart to Good Manufacturing Practice, which governs production. Together they form part of the wider GxP framework. GDP differs from data-protection regimes such as GDPR, which concerns personal data rather than product quality, and from bookkeeping standards such as GoBD, which govern financial records. Companies that also operate in the United States may additionally need to align electronic record-keeping with 21 CFR Part 11. Implementing GDP well is therefore less about a single feature and more about how master data, processes and documentation are organised so that compliance can be demonstrated on demand.

Related Topics

• GxP Validation
• Audit trail