SAP Data Migration Functional Consultant – Source-to-Pay (STP)
Position Summary
The SAP Data Migration Functional Consultant – Source-to-Pay (STP) is responsible for the end-to-end functional ownership of assigned SAP data migration objects supporting procurement and supplier-related business processes within a large global SAP S/4 HANA transformation program.
The consultant serves as the primary liaison between STP Business Process Teams, Business Data Owners, Data Construction SMEs, cross-functional value streams, and Data Migration Developers to ensure business requirements are translated into accurate migration designs, Functional Design Specifications (FDS), Field Mapping Documents (FMD), data cleansing strategies, relevancy rules, validation procedures, and successful production deployments.
The consultant is responsible for legacy data assessment and profiling, data relevancy analysis, data mapping, business data construction, migration testing, data validation, and cutover support for STP master and transactional data.
Primary Data Migration Objects
Typical STP migration objects may include, depending on project scope:
Business Partner – Supplier
Purchasing Info Records
Source Lists
Purchasing Contracts
Scheduling Agreements
Open Purchase Requisitions
Open Purchase Orders
Supplier-related pricing and purchasing data
Other procurement master and open transactional data included in the approved migration scope
The exact migration object scope will be based on the SAP S/4 HANA solution design and approved project migration inventory.
Key Responsibilities
1. Legacy Data Assessment and Profiling
Perform detailed analysis and profiling of legacy procurement and supplier data to understand source structures, relationships, data volumes, completeness, usage patterns, and overall data quality.
Analyze legacy data volumes by relevant organizational dimensions such as company code, purchasing organization, purchasing group, plant, supplier, material, document type, and other applicable attributes.
Identify duplicate, incomplete, inconsistent, obsolete, and invalid records and other data quality issues that could affect migration.
Estimate data cleansing and remediation effort based on profiling results.
Prepare data assessment reports and communicate findings, risks, and recommendations to Data Migration and STP leadership.
2. Data Relevancy Analysis
Collaborate with STP Functional Teams, Business Data Owners, and cross-functional process teams to define business-driven data relevancy rules.
Define criteria for determining Active versus Inactive suppliers, purchasing master data, and open procurement transactions.
Develop object-specific relevancy rules using criteria such as recent purchasing activity, open transactions, supplier status, organizational assignments, future sourcing requirements, and legal or regulatory requirements.
Analyze cross-functional dependencies when determining migration relevancy.
Produce relevancy reports identifying records proposed for migration and exclusion.
Review relevancy results with Business Data Owners and obtain alignment on the migration population.
Maintain and refine relevancy rules throughout mock conversion cycles.
3. Data Mapping and Functional Design
Conduct Data Mapping Workshops with STP Functional Teams, Business Data Owners, Business SMEs, and other stakeholders.
Analyze legacy source structures and SAP S/4 HANA target requirements.
Develop and maintain Data Migration Functional Design Specifications (FDS).
Develop and maintain Field Mapping Documents (FMD) defining:
Source-to-target mappings
Transformation rules
Default values and derivations
Value conversions
Cross-reference (XREF) requirements
Organizational mappings
Data cleansing requirements
Data validation rules
Identify dependencies on Material Master, Finance, Inventory, Manufacturing, Quality Management, and other value streams.
Keep FDS and FMD documentation current throughout the migration lifecycle.
4. Business Data Construction and Enablement
Identify and support Business Data Construction SMEs for assigned migration objects.
Onboard and train business users on their data migration responsibilities, including:
Data construction
Data cleansing
XREF file preparation
Relevancy validation
Pre-load validation
Post-load validation and reconciliation
Assist Business SMEs with constructing data that cannot be directly derived from legacy systems.
Support development and validation of XREF data used to convert legacy values to SAP S/4 HANA values.
Review constructed data for completeness, consistency, and migration readiness.
5. Migration Build Support
Work closely with SAP BODS or Syniti Data Migration Developers during migration design and build.
Explain functional requirements documented in the FDS and FMD.
Clarify source-to-target mappings, transformation logic, XREF rules, relevancy rules, defaulting and derivation requirements, and validation logic.
Review ETL implementation to ensure alignment with approved functional requirements.
Support developers in analyzing source data and resolving functional questions and migration errors.
Participate in design reviews and migration object readiness reviews.
6. Testing and Data Validation
Develop Functional Unit Test scenarios and expected results.
Perform Functional Unit Testing for assigned STP migration objects.
Work with developers to troubleshoot ETL errors, transformation defects, data load failures, and reconciliation differences.
Assist Business SMEs with pre-load validation, mock conversion validation, post-load validation, and legacy-to-SAP reconciliation.
Determine whether defects require remediation in source data, constructed data, XREFs, mapping specifications, or ETL logic.
Support defect logging, retesting, resolution, and closure.
Coordinate business review and approval of migration validation results.
7. Cross-Functional Coordination
Coordinate with other SAP value streams where STP migration objects have cross-functional dependencies.
Work with RTR/Finance teams on Supplier Business Partner company-code and financial attributes.
Coordinate with Material Master and PP teams for material-related procurement data.
Coordinate with QM teams for Quality Info Records and supplier quality dependencies.
Coordinate with Inventory, Warehouse Management, and other supply-chain teams for open purchasing transactions.
Identify migration sequencing dependencies and communicate them to Data Migration leadership.
8. Cutover and Hypercare Support
Support mock conversions, dress rehearsals, and production migration events.
Participate in cutover planning and readiness reviews.
Validate that construction, XREF, relevancy, ETL, and validation activities are complete before production migration.
Coordinate business validation and reconciliation during cutover.
Track migration-related issues through resolution during cutover and Hypercare.
Required Qualifications
Bachelor's degree in Engineering, Information Systems, Computer Science, Business Administration, or related discipline.
5+ years of hands-on SAP Data Migration Functional Consultant experience supporting Source-to-Pay / Procure-to-Pay data migration.
10+ years of SAP consulting experience supporting large global SAP ERP implementations or SAP S/4 HANA transformation programs.
Strong functional understanding of SAP procurement and supplier master data processes.
Demonstrated experience with legacy data profiling, data quality assessment, and data cleansing.
Experience defining data relevancy rules and migration scope.
Experience conducting Data Mapping Workshops and preparing FDS and FMD deliverables.
Experience supporting business data construction, XREF development, and pre-load/post-load validation.
Experience working with SAP BODS, Syniti, SAP Migration Cockpit, or comparable enterprise migration solutions.
Experience supporting multiple mock conversion cycles and production cutovers.
Strong analytical, communication, documentation, and stakeholder management skills.
Preferred Qualifications
SAP S/4 HANA Sourcing and Procurement implementation experience.
Strong understanding of Business Partner – Supplier and purchasing organizational structures.
Experience migrating Supplier, Purchasing Info Record, Source List, Contract, Scheduling Agreement, and open purchasing transaction data.
Experience with global SAP programs involving multiple company codes, purchasing organizations, plants, and legacy ERP systems.
Experience working with globally distributed onshore/offshore teams.
Familiarity with SAP Activate and Agile delivery methodologies.