Invisible Substitutions: How Approved Material Lists Quietly Erode Without Anyone Noticing
Suppliers routinely make incremental changes to materials, certifications, and country-of-origin designations that fall just within the boundaries of approved specifications — and most procurement teams never detect the shift until a quality failure or compliance audit forces the issue. This investigation examines how specification drift takes root, why conventional approval workflows fail to catch it, and what a rigorous material governance audit looks like in practice.