• Customisations and technical debt are known but there is no actionable plan for decommissioning and modernisation
• Prioritisation is difficult: what delivers the greatest value, what poses the highest upgrade or operational risk?
• Without a phased plan, dependencies are underestimated, effort remains unclear and implementations are delayed
• Detailed planning of technical debt decommissioning
• Prioritisation by business value, risk and technical effort
• Structuring into pragmatic implementation waves (phases)
• Clear decision logic per measure (e.g. decommission vs. modernise), incl. dependencies and prerequisites
• Roadmap as an implementation-ready working basis for scope, budgeting and next project setup
