Case study · Manufacturing
SAP S/4HANA Migration Playbook
Brownfield S/4HANA migration with data-quality remediation and process optimization.
Key results
- Month-end close -42%
- Data quality +61%
- User adoption 94% at go-live
Context
A global manufacturer running SAP ECC with years of accumulated customizations and data-quality issues needed to migrate to S/4HANA. The finance close was running 12 business days; data-quality issues in master data (materials, customers, vendors) compounded month after month.
Challenge
A big-bang migration would have carried the ECC data-quality issues into S/4HANA unchanged. The client wanted the migration to fix rather than preserve the data baseline, but that required additional scope that had to be carefully controlled so it didn't blow the timeline.
Approach
Thoughtwave delivered a 14-month brownfield S/4HANA migration with parallel data-quality remediation, process-optimization workshops during each module's migration, and a phased go-live that minimized business disruption. Our TWSS QuantumWave SAP practice led the engagement.
Outcomes
Month-end close dropped 42% (from 12 days to 7); data quality across master data improved 61% on the defined quality metrics; user adoption at go-live reached 94% due to the process-optimization and change-management emphasis during the engagement.
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