Rolshan Simon Lewis

Led end-to-end S/4HANA implementation for Tropicana Brand Group across 9 manufacturing plants, managing master data for over 1,500 materials and designing robust SD-MM/WM integration workflows. Achieved a zero-disruption go-live while reducing supply chain and order delays by 30% and improving billing accuracy by 25%. Oversaw complex E-invoicing implementations across Belgium and Poland with Peppol and KSeF compliance, coordinating CPI cloud integration between SAP ECC, S/4HANA, and regional government clearance portals.

• Led end-to-end S/4HANA implementation across 9 manufacturing plants and managed a master data catalog of 1,500+ materials for Tropicana Brand Group
• Designed robust SD-MM/WM integration workflows, successfully reducing supply chain and order delays by 30%
• Improved billing and invoice accuracy by 25% while achieving a completely seamless, zero-disruption system go-live
• Oversaw complex E-invoicing implementations across legal entities in Belgium and Poland, integrating smoothly with Peppol and KSeF compliance systems
• Coordinated CPI cloud integration leveraging SAP ECC & S/4HANA IDocs to ensure seamless automated communication with regional government clearance portals

Delivered full-lifecycle SAP ECC to S/4HANA migration for DEWA with comprehensive Application Management Support, maintaining 99.8% critical uptime. Designed and implemented milestone billing and Resource-Related Billing leveraging SAP PS and SD integration to streamline institutional cash flows and automate revenue recognition, while mapping Sales Orders to WBS elements to eliminate manual reconciliations. Automated cross-module SD-MM scrap sales workflows and optimized material management integration, improving financial auditing accuracy by 40% and shortening procurement cycles by 35%.

• Delivered a full-lifecycle SAP ECC to S/4HANA migration and provided high-availability Application Management Support (AMS), consistently maintaining a 99.8% critical uptime profile
• Designed and implemented milestone billing and Resource-Related Billing (RRB) leveraging deep SAP PS and SD cross-module configuration to streamline institutional cash flows and automate revenue recognition protocols
• Mapped and linked commercial Sales Orders directly to account-assigned WBS elements to automate tracked transfer variances between planned budgets and actual project delivery revenue, eliminating manual multi-team reconciliations
• Automated cross-module SD-MM scrap sales and decommissioning workflows to step up financial auditing accuracy by 40%
• Optimized material management integration to shorten manual procurement turnaround cycles by 35%

Managed complex SAP SD-MM cross-functional localization rollouts across 5 strategic Southeast Asian countries for Fujitsu. Architected integrated supply chain checks and automated balancing parameters that reduced cross-facility stock mismatches by 20%.

• Managed complex SAP SD-MM cross-functional localization rollouts across 5 strategic Southeast Asian countries
• Architected integrated supply chain checks and automated balancing parameters to reduce cross-facility stock mismatches by 20%

Drove large-scale legacy system upgrade initiatives from SAP R/3 4.6 to ECC 6.0 standards at Accenture. Redefined system billing runs and automated processing streams, lowering end-to-end invoice cycle times by 15%.

• Drove large-scale legacy system upgrade initiatives from SAP R/3 4.6 to corporate ECC 6.0 standards
• Redefined system billing runs and automated processing streams to lower end-to-end invoice cycle times by 15%