The Packaging and Packaging Waste Regulation is now in force across the EU, and enforcement no longer waits for a transition window. For global manufacturers, importers, and brand owners, the exposure is immediate: packaging that misses recyclability, recycled-content, or substance-restriction thresholds can stall shipments at the border and trigger costly rework. The harder problem is that obligations now differ by role in the supply chain, so a single misread requirement can cascade into audit findings and penalty exposure. This first-day breakdown maps what each supply chain role must actually prove, where documentation gaps most often surface, and how PPWR compliance connects to the wider EU packaging regulation requirements already reshaping market access. It also shows why manual, spreadsheet-based tracking struggles to keep pace, and how AI-native compliance automation and continuous audit readiness change the equation. Certivo serves as the system of record that keeps BOM-leve