{"id":8099,"date":"2026-04-22T10:08:47","date_gmt":"2026-04-22T14:08:47","guid":{"rendered":"https:\/\/nabsolutions.com\/us\/?p=8099"},"modified":"2026-04-22T10:08:47","modified_gmt":"2026-04-22T14:08:47","slug":"audit-trail-explained-simply","status":"publish","type":"post","link":"https:\/\/nabsolutions.com\/us\/industries\/the-process-industry\/medical-device-manufacturing\/audit-trail-explained-simply\/","title":{"rendered":"Audit Trail \u2013 explained simply"},"content":{"rendered":"\r\n<section class=\"nab-news-hero\">\r\n    <div class=\"nab-news-hero-inner\">\r\n        <header class=\"nab-news-hero-header\">\r\n            <p class=\"nab-news-hero-header-date is-ingress\">\r\n                April 22nd, 2026            <\/p>\r\n\r\n            <h1 class=\"nab-news-hero-header-title is-h2\">\r\n                Audit Trail \u2013 explained simply            <\/h1>\r\n\r\n                                                <!-- <a href=\"\" class=\"nab-news-hero-header-button nab-button is-primary is-grey is-chips\">\r\n                                            <\/a> -->\r\n\r\n                    <p class=\"nab-news-hero-header-button-no-button\">\r\n                        Medical device manufacturing                    <\/p>\r\n                                    <\/header>\r\n\r\n        <div class=\"nab-news-hero-image\">\r\n            <img decoding=\"async\" \r\n                data-src=\"https:\/\/nabsolutions.com\/us\/wp-content\/uploads\/sites\/4\/2026\/04\/Audit-Trail-\u2013-explained-simply.webp\"\r\n                alt=\"\"\r\n                class=\"nab-news-hero-image-figure lazyload\"\r\n             src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1280px; --smush-placeholder-aspect-ratio: 1280\/720;\">\r\n        <\/div>\r\n\r\n        <header class=\"nab-news-hero-excerpt\">\r\n            <p class=\"nab-news-hero-excerpt-text is-ingress\">\r\n                An audit trail provides a complete, tamper\u2011proof record of actions and changes in a system. By capturing who did what, when, how, and why, audit trails enable full traceability, support regulatory compliance, and protect data integrity in regulated industries such as pharmaceuticals, food, and life sciences.            <\/p>\r\n        <\/header>\r\n\r\n        <div class=\"nab-news-hero-content\">\r\n            <div class=\"nab-news-hero-content-inner\">\r\n                <h4 class=\"nab-news-hero-content-title is-bold is-grey\">\r\n                    Table of contents                <\/h4>\r\n\r\n                <ol class=\"nab-news-hero-content-list\">\r\n                                    <\/ol>\r\n            <\/div>\r\n        <\/div>\r\n\r\n    <\/div>\r\n<\/section>\n\n\r\n\r\n    <section class=\"nab-article has-offset  \" id=\"\">\r\n        <div class=\"nab-article-inner \">\r\n            <h2>What is an audit trail?<\/h2>\n<p>An audit trail is a complete, electronic record that guarantees processes run as intended and every defined step is followed. Each action or change leaves a trace that can be tracked \u2013 from the very first entry to the final approval. With audit trails, every process can be fully retraced, transparently documented, and archived in a way that remains unchanged over the long term.<\/p>\n<h2>What information does an audit trail contain?<\/h2>\n<p>An audit trail records all relevant details of an action to ensure traceability and security. The following information is documented:<\/p>\n<ul>\n<li>Who? The user or system that performed the action.<\/li>\n<li>When? The exact time of the action, captured with a precise timestamp.<\/li>\n<li>With what? The device or system used \u2013 for example, a computer, scanner, or production machine.<\/li>\n<li>What? The activity carried out and the resulting changes.<\/li>\n<li>Why? If required, the reason for the action.<\/li>\n<\/ul>\n<p>This data can be captured automatically or manually. The actual review of audit trail data takes place during an audit trail review \u2013 a process designed to identify deviations, errors, or security risks at an early stage.<\/p>\n<h2>Types of audit trails<\/h2>\n<p>Audit trails can focus on different aspects:<\/p>\n<ul>\n<li><strong>Configuration audit trails<\/strong>\u00a0\u2192 Record changes to system settings or software versions.<\/li>\n<li><strong>Data audit trails<\/strong>\u00a0\u2192 Document modifications to user or product data.<\/li>\n<li><strong>System audit trails<\/strong>\u00a0\u2192 Log logins, access events, and activities within a system.<\/li>\n<\/ul>\n<p>Whether captured automatically or manually, the data is stored in a tamper-proof way to prevent manipulation or loss. These records are regularly reviewed in an audit trail review. In highly regulated industries such as pharmaceuticals and food, precise documentation is essential to meet GMP and FDA requirements.<\/p>\n<h2>What is not an audit trail?<\/h2>\n<p>Not every type of documentation qualifies as a true audit trail. The following systems or methods do not provide audit-trail compliance:<\/p>\n<ul>\n<li>Simple system logs or error reports: Often incomplete and lacking a full record of all changes.<\/li>\n<li>Manual change lists or spreadsheets: Unless captured automatically and stored in a tamper-proof way, they are not reliable.<\/li>\n<li>Unprotected backup data: Backups save data states, but not the changes made or the reasons behind them.<\/li>\n<\/ul>\n<p>A genuine audit trail must be complete, tamper-proof, and traceable at any time to reliably meet regulatory requirements.<\/p>\n<h2>Quick Check: Is your audit trail up to standard?<\/h2>\n<p>Use this checklist to find out whether your audit trail is set up the right way:<\/p>\n<ul>\n<li>Are regulatory requirements (GMP, FDA, ISO) met?<\/li>\n<li>Are all relevant processes fully documented?<\/li>\n<li>Are access rights and electronic signatures up to date?<\/li>\n<li>Are audit trail reviews carried out regularly?<\/li>\n<li>Are responsibilities and review methods clearly defined?<\/li>\n<\/ul>\n<h2>Legal requirements at a glance: When is an audit trail mandatory?<\/h2>\n<p>Audit trails are required whenever electronic data is legally created, processed, or signed. In highly regulated industries, both the FDA and the EU explicitly mandate their use:<\/p>\n<p>USA \u2013 FDA (21 CFR Part 11)<br \/>\n\u2192 Mandatory for electronically generated and signed data. Non-compliance often results in FDA warning letters and can lead to serious consequences such as production stoppages or loss of trust.<\/p>\n<p>EU \u2013 GMP Annex 11<br \/>\n\u2192 Required for electronic systems in production,\u00a0quality control, and documentation to ensure full GMP compliance.<\/p>\n<h2>What is checked in an audit trail review?<\/h2>\n<p>An audit trail review focuses on evaluating the relevant data recorded in an audit trail. In regulated industries, such reviews are essential to safeguard compliance and data integrity.<\/p>\n<p>Key criteria include:<\/p>\n<ul>\n<li>Which data? Selection of the relevant entries<\/li>\n<li>Who reviews? The responsible individuals or teams<\/li>\n<li>How often? Defined review intervals (e.g. daily, weekly)<\/li>\n<li>How is it reviewed? The chosen method \u2013 manual, automated, or AI-supported<\/li>\n<\/ul>\n<p>Audit trail reviews are indispensable: they help detect manipulation early, prevent data loss, and address compliance risks before they become critical.<\/p>\n<h2>Typical use cases for audit trails<\/h2>\n<p>In regulated industries, audit trails are an essential tool to track critical processes with full transparency and prevent data loss. Common examples from practice include:<\/p>\n<ul>\n<li>Cybersecurity &amp; IT security \u2192 Logging hacker attacks, unauthorized access, or suspicious activities.<\/li>\n<li>Monitoring critical production conditions \u2192 Detecting failures in cooling systems or temperature fluctuations in production (e.g. pharmaceuticals or food).<\/li>\n<li>Fraud detection \u2192 Protecting against manipulated business data, unauthorized changes, or internal fraud.<\/li>\n<li>Data loss &amp; recovery \u2192 Documenting deleted or accidentally altered information, production data, or formulations.<\/li>\n<li>Changes to production &amp; quality data \u2192 Recording recipe adjustments, shelf-life extensions, or process modifications for\u00a0<strong><a href=\"https:\/\/www.yaveon.com\/en\/insights\/article-quality-audit\/\">audits<\/a><\/strong>\u00a0and regulatory inspections.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n        <\/div>\r\n    <\/section>\r\n\n\n\n\n\n    <section class=\"nab-bento  \" id=\"\">\n        <div class=\"nab-bento-inner\">\n                            \n                                    <div class=\"nab-bento-items is-bento-one\">\n                                                    <div class=\"nab-bento-item link-box-wrapper is-bento-one\">\n                                <div class=\"nab-bento-item-inner is-dark-green has-overlay  is-flex-end \">\n                                                                            <img decoding=\"async\"\n                                            class=\"nab-bento-item-image-figure has-overlay lazyload\" \n                                            data-src=\"https:\/\/nabsolutions.com\/us\/wp-content\/uploads\/sites\/4\/2026\/03\/Bento-Process-Consideration-1.webp\" \n                                            alt=\"\"\n                                         src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1920px; --smush-placeholder-aspect-ratio: 1920\/1080;\">\n                                                                        \n                                    \n                                    <header class=\"nab-bento-item-header \">\n                                                                                    <p class=\"nab-bento-item-header-subtitle is-uppercase\">\n                                                Process Industry                                            <\/p>\n                                            <h3 class=\"nab-bento-item-header-title  \">\n                                                A platform that supports quality, batches, and regulatory compliance.                                            <\/h3>\n                                        \n                                                                                    <a \n                                                href=\"https:\/\/nabsolutions.com\/us\/industries\/erp-for-process-manufacturing\/\" \n                                                class=\"nab-bento-item-header-button nab-button is-primary \"\n                                                aria-label=\"Explore ERP\"\n                                            >\n                                                <span class=\"nab-link-box\"><\/span>\n                                                                                                    <span class=\"nab-bento-item-header-button-text\">\n                                                        Explore ERP                                                    <\/span>\n                                                    <i class=\"nab-bento-item-header-title-icon material-symbols-outlined is-mobile \" aria-label=\"Arrow right\">arrow_right_alt<\/i>\n                                                                                            <\/a>\n                                                                            <\/header>\n\n                                    \n                                                                    <\/div>\n                            <\/div>\n                                            <\/div>\n                                \n                               \n                                    <\/div>\n    <\/section>\n\n\n\r\n\r\n    <section class=\"nab-article has-offset  \" id=\"\">\r\n        <div class=\"nab-article-inner \">\r\n            <h2>Which file formats are used for audit trails?<\/h2>\n<p>For efficient analysis and archiving, audit trails are stored in various structured file formats. Typical formats include:<\/p>\n<p>CSV \u2013 easy to read, ideal for tables and reports<br \/>\nXML \u2013 structured, widely used in enterprise systems<br \/>\nYAML \u2013 human-friendly, often used for configuration files<br \/>\nJSON \u2013 compact and machine-readable, ideal for modern IT systems<\/p>\n<p>The right format depends on your company\u2019s requirements, IT landscape, and how the data will be further processed.<\/p>\n<h2>How long should an audit trail be retained?<\/h2>\n<p>For many companies, the retention of audit trails is a challenge\u2014mainly because the logs can require significant storage space. Still, the following applies:<\/p>\n<ul>\n<li>Retention for the full lifecycle of the related data: Audit trails should be stored as long as the associated records exist.<\/li>\n<li>Reporting &amp; troubleshooting: Historical audit trails are invaluable for compliance checks, internal controls, and error analysis.<\/li>\n<li>Optimized storage solutions: Modern cloud or archiving technologies help avoid storage bottlenecks while ensuring long-term documentation.<\/li>\n<\/ul>\n<h2>Industries where audit trails are essential<\/h2>\n<p>Audit trails are particularly critical in highly regulated industries to ensure compliance, product safety, and consistent quality assurance. Typical sectors with a strong need for audit trails include:<\/p>\n<ul>\n<li>Pharmaceuticals &amp; biotechnology \u2192 Compliance with GMP, FDA, and ISO requirements for data security and traceability.<\/li>\n<li>Chemicals \u2192 Meeting legal requirements (e.g. REACH) through complete documentation.<\/li>\n<li>Food &amp; cosmetics \u2192 Guaranteeing product safety with audits in line with HACCP and FDA regulations.<\/li>\n<li>Medical technology \u2192 Ensuring compliance with ISO 13485 and MDR regulations.<\/li>\n<\/ul>\n<h2>Audit trail software: What really matters<\/h2>\n<p>Software solutions for the life sciences industry must meet strict audit trail requirements.\u00a0ERP systems\u00a0play a particularly central role, as they control production, quality management, and documentation within companies.<\/p>\n<h2>Key functions of audit trail\u2013enabled software<\/h2>\n<ul>\n<li>Complete logging: All changes and user actions are automatically recorded.<\/li>\n<li>Electronic signatures: Ensure that every entry is authorized (e.g., according to 21 CFR Part 11).<\/li>\n<li>User rights &amp; access control: Prevent unauthorized users from making changes.<\/li>\n<li>Long-term data archiving: Fulfill regulatory requirements and ensure traceability.<\/li>\n<\/ul>\n<h2>The Business Central industry ERP solution<\/h2>\n<p>Designed for the needs of regulated industries,\u00a0Business Central industry solution\u00a0offers comprehensive audit trail functions:<\/p>\n<ul>\n<li>Automated audit trails: Complete documentation of all relevant process steps<\/li>\n<li>User and authorization management: Protection against unauthorized changes<\/li>\n<li>Electronic signatures and FDA\/GMP compliance: Four-eyes principle, compliant with 21 CFR Part 11 and EU-GMP<\/li>\n<li>Industry focus: Tailored for regulated sectors such as pharmaceuticals, chemicals, food, cosmetics, biotechnology, and medical technology<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n        <\/div>\r\n    <\/section>\r\n\n\n\n<section class=\"nab-faq   \" id=\"\">\n    <div class=\"nab-faq-inner\">\n                    <header class=\"nab-faq-header\">\n                                    <h2 class=\"nab-faq-header-heading is-grey\">\n                        FAQ                    <\/h2>\n                            <\/header>\n        \n                    <div class=\"nab-faq-items\">\n                <div class=\"nab-faq-item\">\n                                            <div class=\"nab-faq-item-question\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                            <div class=\"nab-faq-item-question-content\">\n                                <a href=\"\" class=\"nab-faq-item-question-content-link \">\n                                                                            <h3 class=\"nab-faq-item-question-content-link-label is-grey\" itemprop=\"name\">\n                                            Why should we work with NAB?                                        <\/h3>\n                                        <i class=\"nab-faq-item-question-content-link-icon material-symbols-outlined\" style=\"font-variation-settings: 'FILL' 1;\">arrow_circle_down<\/i>\n                                                                    <\/a>\n\n                                                                    <div class=\"nab-faq-item-question-content-answer \" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                                        <span itemprop=\"text\">\n                                            <p>At NAB Solutions, we\u2019re more than a vendor \u2014 we\u2019re a partner. That means we start with your business, not the product. We focus on understanding your needs, goals, and challenges to create solutions that actually solve them, rather than selling features you don\u2019t need.<\/p>\n<div>\n<p>With extensive experience, proven methods, and hundreds of successful projects, we know what works in practice. And we stay with you all the way \u2014 from strategy and implementation to day\u2011to\u2011day use and continuous improvement.<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n                                        <\/span>\n                                    <\/div>\n                                                            <\/div>\n                        <\/div>\n                                            <div class=\"nab-faq-item-question\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                            <div class=\"nab-faq-item-question-content\">\n                                <a href=\"\" class=\"nab-faq-item-question-content-link \">\n                                                                            <h3 class=\"nab-faq-item-question-content-link-label is-grey\" itemprop=\"name\">\n                                            What production and inventory management features do we get with a process manufacturing solution?                                        <\/h3>\n                                        <i class=\"nab-faq-item-question-content-link-icon material-symbols-outlined\" style=\"font-variation-settings: 'FILL' 1;\">arrow_circle_down<\/i>\n                                                                    <\/a>\n\n                                                                    <div class=\"nab-faq-item-question-content-answer \" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                                        <span itemprop=\"text\">\n                                            <p>The solution provides efficient production planning, optimized material requirements planning (MRP), digital batch records and electronic batch records (EBR), quality control, and automated workflows \u2014 all in a single system that also integrates finance, purchasing, and inventory.<\/p>\n                                        <\/span>\n                                    <\/div>\n                                                            <\/div>\n                        <\/div>\n                                            <div class=\"nab-faq-item-question\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                            <div class=\"nab-faq-item-question-content\">\n                                <a href=\"\" class=\"nab-faq-item-question-content-link \">\n                                                                            <h3 class=\"nab-faq-item-question-content-link-label is-grey\" itemprop=\"name\">\n                                            How does Business Central help us meet compliance, traceability, and quality requirements in process manufacturing?                                        <\/h3>\n                                        <i class=\"nab-faq-item-question-content-link-icon material-symbols-outlined\" style=\"font-variation-settings: 'FILL' 1;\">arrow_circle_down<\/i>\n                                                                    <\/a>\n\n                                                                    <div class=\"nab-faq-item-question-content-answer \" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                                        <span itemprop=\"text\">\n                                            <p data-start=\"366\" data-end=\"775\">With Business Central, you get built\u2011in support for traceability, batch management, and quality controls throughout the entire production process \u2014 from raw materials to finished products. Digital documentation, batch records, and clear audit trails create a structured foundation that makes it easier to meet regulatory requirements, work consistently, and demonstrate compliance during internal and external audits.<\/p>\n                                        <\/span>\n                                    <\/div>\n                                                            <\/div>\n                        <\/div>\n                                    <\/div>\n            <\/div>\n            <\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>An audit trail provides a complete, tamper\u2011proof record of actions and changes in a system. By capturing who did what, when, how, and why, audit trails enable full traceability, support regulatory compliance, and protect data integrity in regulated industries such as pharmaceuticals, food, and life sciences.<\/p>\n","protected":false},"author":8,"featured_media":8192,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[220],"tags":[235],"post_folder":[190],"class_list":["post-8099","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-medical-device-manufacturing","tag-neural-impact"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Audit Trail \u2013 explained simply - NAB Solutions<\/title>\n<meta name=\"description\" content=\"An audit trail provides a complete, tamper\u2011proof record of actions and changes in a system. 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