Most SAP S/4HANA migrations fail when quality assurance is brought in too late, scoped too narrowly, or treated as a final checkpoint rather than an ongoing governing discipline. Examine ten of the most common points of failure in S/4HANA migrations, why each one persists, and how QA can address them.
What you'll learn
- Which scope, data and stakeholder decisions determine migration risk long before go-live
- Where standard testing falls short of specific S/4HANA requirements: Fiori, role-based access, and the third-party systems SAP connects to
- How to structure QA as an ongoing governing discipline instead of a single checkpoint
Key Insights Inside
The SAP S/4HANA Pitfalls to Plan For
- Inadequate planning and scope definition: Interface dependencies, data complexity, and end-user impact are routinely underestimated.
- Customisations and complexities: Brownfield migrations amplify the risk of broken custom code.
- Lack of stakeholder alignment: Disconnects between IT and business teams create conflicting priorities and delayed decisions.
- Inadequate data strategy: Mismatched master data or incomplete transaction records disrupt order-to-cash and procure-to-pay processes.
- Neglecting training and change management: Not incorporating end-users into early testing phases creates resistance.
- Overlooking third-party integrations: Satellite systems such as banking platforms and CRM tools are frequently left out of testing scope.
- Insufficient performance testing: Functionality testing alone is not enough. Load and stress testing must be incorporated.
- Neglecting post-migration QA: Treating go-live as the endpoint creates undetected defects and compliance risk.
- Ignoring SAP-specific testing needs: Standard testing approaches miss the nuances of Fiori, HANA optimisation, and role-based access.
- Underestimating security challenges: Misconfigured roles and access controls create regulatory exposure.
Frequently Asked Questions
This guide is written primarily for SAP Programme Directors, Enterprise Architects, and Heads of Quality Engineering planning an S/4HANA migration 6 to 12 months out, alongside CIOs and IT leadership who need visibility into where migration risk concentrates before budget and scope are locked in.
Failed S/4HANA migrations are rarely caused by the platform itself. Recurring causes are undefined scope, unvalidated customisations, misaligned stakeholders and data that does not survive the transition intact. Each is addressable through structured QA introduced before the migration begins, not after issues surface in production.
The main risks sit in areas standard testing often treats as secondary: data integrity across transformed datasets, third-party integrations with banking and CRM systems, performance under real transaction volumes, and security configurations such as role-based access. A risk-based testing strategy scopes effort to where business impact is greatest, rather than testing everything equally.
Data integrity requires automated validation of migrated records against source data, not manual spot-checks. Tools such as Tricentis Data Integrity confirm that master and transaction data, financial reporting and compliance-relevant records remain accurate and complete throughout the transformation, with traceable audit trails to support regulations such as GDPR or SOX.
When the systems integrator that builds the solution also signs off on its quality, validation carries a conflict of interest. An independent QA partner separates delivery from assurance, so testing outcomes are governed without pressure to protect a go-live date. TTC Global does not implement SAP; it validates it.
At minimum: functional, integration, regression and performance testing across core and custom processes; data validation against source systems; third-party integration testing; role-based security testing; and a defined post-go-live regression suite. The full guide maps each of these to the ten most common QA pitfalls.