Case Study: a leading UK defence company delivers SAP S/4HANA transformation with Project One

a leading uk defence company cuts over to SAP S/4HANA at year-end with Project One

The customer, a leading UK defence company, faced the challenge of migrating its critical Shared Services business unit from SAP ECC6 to SAP S/4HANA before the 2025 support deadline. This was a high-risk, strategic platform change that ran their core finance, HR, and procurement processes and integrated with 20 other systems. Past implementations in other business units had experienced significant issues, so they engaged Project One to ensure a right-first-time approach.

Project One provided programme leadership, opting for a greenfield S/4HANA implementation to enforce standard processes and minimize customization. They established strong governance, managed a 120-person team, and drove the project relentlessly to meet a non-negotiable year-end deadline. The programme was delivered on plan and on budget, cutting over successfully with minimal planned disruption to business operations. Project One's solution ensured a high-quality outcome for the customer.