A high-level change impact analysis (CIA) is conducted early in an SAP project (typically in the Prepare or Explore phase of SAP Activate) to assess the scope and scale of changes. Option A is correct because identifying risks (e.g., resistance or resource gaps) early allows integration into the project’s risk management strategy. Option B is correct as it provides a broad overview of change impacts across business units, processes, and people, setting the stage for detailed analysis later. Option D is correct because it helps the change manager focus efforts on high-impact areas, such astraining or communication for affected groups. Option C is incorrect—while it may indirectly highlight resistance, identifying opponents is a function of stakeholder analysis, not the CIA’s primary purpose. Option E is also incorrect; communication inputs are derived from the CIA but are not its core added value—tangible implications are a byproduct, not the focus.

Extract from SAP OCM Concepts: The high-level CIA aligns with SAP Activate’s Prepare phase, providing a foundation for risk mitigation and resource allocation (SAP Activate, OCM Framework).