The enterprise faced SAP ECC end-of-support and had to migrate to S/4HANA. The core risk was silent regressions, where downstream processes break or diverge without anyone noticing during the transformation.
TrustEvals applied a reference-design approach to validate equivalence between the old and new systems. Production data is replayed to confirm the migrated environment reproduces the same results, providing evidence that nothing regressed before cutover.
Equivalence is proven by replaying real production data through both the reference design and the migrated system and comparing outputs, so regressions surface before go-live rather than after.
Best fit for enterprises facing a forced ERP migration deadline that must prove, with evidence, that the new system behaves identically to the old one.

The enterprise worked with the experts, who applied a reference-design approach that validates equivalence between the legacy and migrated systems. Real production data is replayed through both and outputs are compared, so regressions surface before go-live rather than after, giving evidence that nothing regressed before cutover.
The approach is reference-design equivalence validation with production-data replay: real production data is run through both the reference design and the migrated S/4HANA system and the outputs are compared to detect regressions. No specific AI model or vendor is established in the record.
A reference design validates that the old and migrated systems produce the same results, real production data is replayed to catch regressions before cutover, and the work addresses the SAP ECC end-of-support deadline with evidence that nothing regressed.
The record does not specify a timeline for the migration or validation work.
It is best suited to enterprises facing a forced ERP migration deadline that must prove, with evidence, that the new system behaves identically to the old one.