Converting a regulated manufacturing landscape without losing twenty years of configuration
Eight plants, 2,800 custom programs, and HAZMAT compliance exposure that legacy warehouse management could not address. VYNQOR executed a brownfield conversion that preserved configuration while remediating the debt underneath it.
In regulated manufacturing, the cost of a compliance gap is not measured in efficiency.
This Fortune 500 specialty chemicals company had operated SAP ECC 6.0 (EhP6) across eight US manufacturing sites since 2006. The landscape carried more than 2,800 custom Z-programs, and batch manufacturing had no SAP-native traceability - compliance was being achieved through costly bolt-ons and extensive manual audit documentation.
The regulatory context made this materially different from a standard ERP modernisation. FDA 21 CFR Part 11 and EPA obligations set an evidentiary standard the existing landscape could only meet through manual effort. Legacy warehouse management could not support HAZMAT inventory requirements, producing audit findings and driving excess safety stock worth over $12M across the eight plants.
FDA 21 CFR Part 11 and EPA compliance dependent on manual documentation rather than system-enforced controls.
Over $12M in excess safety stock held across eight plants because HAZMAT inventory could not be managed with confidence.
2,800+ Z-programs represented technical debt that actively blocked system upgrades, compounding the compliance position.
- 2,800+ custom Z-programs creating high technical debt and blocking system upgrades.
- Batch manufacturing lacked SAP-native traceability, requiring custom bolt-ons and manual audit documentation.
- FDA 21 CFR Part 11 and EPA regulatory compliance impeded by the custom code footprint.
- Legacy WM module unable to support HAZMAT inventory management, causing audit findings.
- Excess safety stock worth over $12M held across all eight plants.
How we approached it
Brownfield was the correct choice here - twenty years of regulated process configuration carried real value. The debt underneath it did not.
Preserve configuration, remediate code
A system conversion retained validated business configuration - significant in a regulated environment - while custom code was rationalised rather than carried forward wholesale.
Move extensions off the core
Z-program rationalisation used SAP BTP side-by-side extensions, relocating necessary customisation outside the core so future upgrades stop being blocked by it.
Make compliance system-native
SAP EWM replaced legacy WM to bring HAZMAT inventory management into the platform, converting a manual compliance burden into an enforced system behaviour.
Restructure the financial close
Universal Journal activation eliminated manual reconciliation across plant sites, accelerating period-end without adding process overhead.
Put analytics in the operator's hands
Embedded analytics with Fiori dashboards surfaced batch manufacturing, quality inspection and plant maintenance KPIs at the point of work.
The architecture behind the outcome
A brownfield conversion architecture - validated configuration preserved on the core, customisation deliberately relocated outside it.
Measured, not estimated.
Metrics we would instrument next to extend value measurement beyond the delivered baseline. These are recommendations, not achieved results.
- Audit findings related to HAZMAT inventory control, tracked against the pre-conversion baseline
- Safety stock value held across sites, as HAZMAT confidence reduces the need for buffer
- Effort required to produce batch traceability evidence for a regulatory request
Delivered through VynImpact™
Every VYNQOR engagement runs on the IMPACT methodology, so delivery health is visible continuously rather than reported retrospectively. This programme ran 18 months end to end.
Analysed the 2,800+ Z-program estate against regulatory dependency and upgrade impact.
Determined what configuration to preserve, what code to eliminate, and what to relocate to BTP.
Structured the brownfield conversion path, master data harmonisation and multi-site sequencing.
Executed conversion to S/4HANA 2023 with EWM replacing legacy WM for HAZMAT compliance.
Rolled out across all eight manufacturing sites with harmonised master data and operator enablement.
Measured system performance, close duration and custom code footprint against the pre-conversion baseline.
Scope, grouped by discipline
Platform Engineering
- Brownfield system conversion to SAP S/4HANA 2023
- SAP Activate Conversion methodology execution
- Custom code remediation and rationalisation
- SAP BTP side-by-side extension architecture
Governance
- FDA 21 CFR Part 11 control alignment
- EPA regulatory compliance support
- SAP-native batch traceability
- Master data harmonisation across 8 sites
Business Process
- HAZMAT-compliant inventory management via SAP EWM
- Batch manufacturing process redesign
- Quality inspection process alignment
Automation
- Universal Journal (ACDOCA) activation
- Elimination of manual financial reconciliation
- Automated period-end close across plant sites
User Experience
- SAP Fiori dashboards for batch manufacturing
- Embedded analytics for quality and plant maintenance
- Modules deployed: FI/CO, MM, SD, PP, QM, WM, TM
Client testimonial pending approval. This engagement is available as a named reference on request.
Reference available on requestWhat made the difference
We chose the harder conversion path for the right reason
Greenfield would have been faster to build. In a regulated environment, twenty years of validated configuration is an asset - brownfield protected it while still removing the debt.
Customisation relocated, not just reduced
Cutting the Z-program footprint by 40% mattered less than moving what remained onto BTP, so the next upgrade is no longer blocked by the extension layer.
Compliance moved from manual to enforced
EWM brought HAZMAT inventory into the platform. That is the difference between documenting compliance and the system preventing the exception.
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