Migrations are evolving from mere speed-focused transitions to smarter processes that prioritize maintaining business logic, compliance, and observability while allowing for future improvements. Although AI has accelerated the technical aspects of migrations, the real challenge lies in ensuring the integrity of business logic, adherence to regulatory requirements, and the resilience of decision-critical data throughout the transition. Successful Systems Integrators (SIs) are those that adapt by incorporating confirmation loops, embedding compliance as code, and preparing for portability and rollback-ready cutovers. This involves structured proofs of system functionality, lineage visualization, and human-in-the-loop validation to reassure non-technical stakeholders of the migration's success. As new regulations like the EU AI Act demand robust compliance measures, clients increasingly expect these elements to be integrated into their data pipelines, rewarding SIs capable of meeting these demands with ongoing modernization projects.