PCL Construction embarked on an ambitious JD Edwards transformation project—consolidating 26 legacy JDE instances, spanning over 30 years, into a single, cloud-based global ERP platform. PCL executed a two-phase strategy: first migrating to the Syntax Cloud, then consolidating into a unified instance on Microsoft Azure. The scope included unifying over 370 financial companies, standardizing 150,000 assets, and reducing address book records from 750,000 to just 60,000 through rigorous deduplication. Core modules such as Finance, HCM, Supply Chain, Asset, and Project Management were harmonized to support global operations and compliance across multiple currencies and jurisdictions. This session will share key lessons learned, the phased technical approach, historical data strategies, and the business impacts of this effort—including improved agility, reduced overhead, and a modern ERP foundation ready for future innovation.