SAP Ariba

Role Overview

SAP Source-to-Pay Application Functional Lead owns functional design, stabilization, and continuous improvement across the enterprise SAP source-to-pay application landscape: SAP S/4HANA Cloud Public Edition procurement, SAP Ariba Buying and Invoicing, Supplier Lifecycle and Performance, contract-related processes, SAP Ariba Invoicing (formerly SAP Central Invoice Management where applicable), and SAP Fieldglass contingent workforce processes.

Key Responsibilities

• Own the cross-application source-to-pay functional roadmap, production backlog, and design governance.
• Lead S/4HANA Cloud Public Edition operational procurement configuration and support for requisitioning, purchasing, receiving/service entry, invoice integration, and procurement master/organizational data within scope.
• Own SAP Ariba Buying and Invoicing functional configuration and process controls, including guided/requisition-to-order and invoice-related user experiences where deployed.
• Own supplier onboarding, qualification, lifecycle, profile, and performance processes in SAP Ariba Supplier Lifecycle and Performance.
• Own contract compliance/process integration requirements, including contract consumption, ordering/invoicing against contracts, and handoffs across Ariba and S/4.
• Own SAP Ariba Invoicing processes deployed for centralized invoice intake/orchestration; recognize that SAP Central Invoice Management is legacy naming for this product area.
• Own SAP Fieldglass contingent workforce functional processes, including worker/work-order lifecycle, time/expense or service-related approvals where deployed, and downstream procurement/financial integration.
• Define integration and data ownership boundaries among S/4, Ariba, SAP Business Network, Fieldglass, Finance, HR, and supplier systems.
• Lead triage of production defects involving purchasing, supplier master, contracts, invoices, service entry, contingent labor, approvals, or cross-system status synchronization.
• Maintain process/configuration documentation, interface ownership, support playbooks, and test traceability.
• Define functional test scenarios and lead regression/business validation for source-to-pay releases.
• Review SAP cloud release changes across S/4, Ariba, and Fieldglass and coordinate impact assessment and regression scope.
• Partner with Security/IAM on business roles, approval controls, segregation of duties, and privileged configuration access.
• Drive clean-core and standard-content adoption, escalating unnecessary customizations or duplicative workflows.
• Manage SI/vendor functional deliverables and enforce defect-resolution quality, evidence, and production-readiness standards.
• Provide functional leadership during supplier onboarding waves, invoice/payment-impacting incidents, and procurement close periods.

SAP / Product-Specific Responsibilities

• SAP S/4HANA Cloud Public Edition operational procurement.
• SAP Ariba Buying and Invoicing; SAP Ariba Supplier Lifecycle and Performance; contract compliance/contract-related capabilities.
• SAP Ariba Invoicing, including environments historically referred to as SAP Central Invoice Management, and integration with SAP Business Network where deployed.
• SAP Fieldglass contingent workforce management and integration with procurement/finance.
• SAP Integration Suite, managed gateway for spend management and SAP Business Network as an integration dependency; functional lead partners with, but does not own, technical integration development.

Operational Responsibilities

• Establish source-to-pay service health, incident/problem management, and business-critical monitoring across product boundaries.
• Track failed or delayed requisitions, POs, receipts/service entries, invoices, supplier syncs, contract consumption, and contingent workforce transactions.
• Maintain release regression packs spanning S/4, Ariba, Business Network, and Fieldglass.
• Drive measurable reduction in manual intervention, stuck transactions, supplier onboarding delays, and invoice exceptions.

Cross-Functional Collaboration

Procurement, Accounts Payable, Finance, Supplier Management, Legal/Contracts, HR/Contingent Workforce, Security, Integration, Data, QA/Release, SAP support, suppliers, and implementation partners.

Required Qualifications

• Bachelor’s degree or equivalent experience in Supply Chain, Business, Information Systems, Engineering, or related field.
• 8+ years of SAP procurement/source-to-pay delivery experience with cross-product leadership.
• Hands-on experience with S/4HANA procurement and one or more SAP Ariba modules; strong multi-product experience preferred.
• Experience with supplier, contract, invoice, and contingent labor process integration.
• Demonstrated post-go-live production support and release experience.

Required Technical / Functional Skills

• SAP S/4HANA Cloud Public Edition Procurement.
• SAP Ariba Buying and Invoicing, Supplier Lifecycle and Performance, contracts/contract compliance, and SAP Ariba Invoicing.
• SAP Fieldglass contingent workforce processes.
• SAP Business Network and managed-gateway integration concepts.
• Approval/workflow, supplier and purchasing master data, invoice/receipt/service-entry controls, testing, and release impact analysis.

Preferred Qualifications

• Experience in a global professional-services enterprise with indirect procurement and contingent workforce complexity.
• Experience with SAP Integration Suite managed gateway and S/4-Ariba-Fieldglass integration troubleshooting.
• Current SAP certification/learning credentials aligned to S/4HANA Cloud sourcing/procurement, SAP Ariba, and/or SAP Fieldglass are preferred.