GxP Validation for Business Central — A Practical Guide

GxP validation for Business Central is a structured engineering process — not a checkbox exercise. For organisations in pharmaceutical, cosmetics, or chemical manufacturing, a validated ERP is a regulatory requirement under EU GMP Annex 11 and FDA 21 CFR Part 11. This guide outlines how to approach that process practically, based on real implementation experience.

What GxP validation means for an ERP system

In a regulated context, validation provides documented evidence that a system does consistently what it is designed to do. For Business Central, this means demonstrating that financial transactions, inventory movements, lot tracking, approval workflows, and electronic records behave predictably, are protected from unauthorised change, and produce reliable audit trails.

GAMP 5 (Good Automated Manufacturing Practice, 5th edition) is the internationally accepted framework for categorising and validating computerised systems. Business Central, including its standard modules and certified AppSource extensions, is typically classified as a Category 4 system — configurable software. This classification determines the validation scope: the product itself is vendor-qualified; your organisation validates the configuration.

The validation lifecycle

A properly scoped validation follows four phases.

Planning establishes the validation strategy document (VSD), defines system boundaries, identifies risks, and assigns responsibilities. For Business Central, the system boundary typically includes the BC tenant, connected integrations (LIMS, QMS, WMS), and all extensions in use. Each component must be inventoried and risk-rated.

Specification produces the User Requirements Specification (URS) — a document written in business language describing what the system must do. The URS is the foundation for everything that follows. Typical URS topics for BC in regulated manufacturing: lot and batch traceability, electronic approval workflows with identity verification, restricted access by role, and complete change history.

The Functional Specification (FS) and, where appropriate, the Design Specification (DS) translate the URS into how the system is configured to meet those requirements. For BC standard functionality, vendor documentation substitutes for much of the FS. For custom extensions and integrations, TrustFort develops project-specific FS documents.

Testing — Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) — provides documented evidence that the system is installed correctly, operates as specified, and performs reliably under real business conditions. Test protocols must be written before testing begins. Deviations must be documented, assessed for impact, and resolved before validation closure.

Audit trail requirements

EU GMP Annex 11 requires that computerised systems create a complete audit trail of all GxP-relevant data changes. Business Central's Change Log captures field-level changes on specified tables with user, timestamp, old value, and new value. Configuration of the Change Log for GxP compliance requires careful scope definition: which tables, which fields, and which events are relevant — and which are not.

The audit trail must be protected from modification. In Business Central SaaS, the underlying Azure infrastructure provides physical protection. Logical protection — ensuring that users cannot alter or delete log entries — requires appropriate permission sets and must be documented in the system description.

Electronic signatures and access control

If your process requires electronic signatures (EU GMP Annex 11, Section 12; FDA 21 CFR Part 11, Subpart C), Business Central supports approval workflows with identity-verified authorisation steps. Each approval records the approving user, their role, the timestamp, and the reason for approval. This meets the intent of electronic signature requirements for most regulated processes when properly configured and validated.

Access control must follow the principle of least privilege. Every user should have exactly the permissions required for their role — no more. A role matrix defining each job function and its required BC permissions is part of the validation package.

Validation documentation package

A complete GxP validation package for Business Central typically includes: Validation Strategy Document, System Description, Risk Assessment, URS, Functional Specification, IQ/OQ/PQ protocols and executed records, Deviation Log, Change Control procedure, and Validation Summary Report.

Maintaining validated status

Every change to the BC configuration — new extensions, modified workflows, updated permission sets, BC platform updates — must pass through a documented change control process. Business Central SaaS updates automatically every six months (major waves) and monthly (minor updates). A prospective update assessment procedure should be in place before the first major wave post-validation.

Download the full GxP Validation Guide for Business Central as a PDF using the link below.