You need to make manual adjustments to your S&OP plan.

Manual adjustments to an S&OP plan in SAP IBP involve editing key figures, supported by specific UIs, per SAP IBP’s S&OP documentation.

Option A: Leveraging the web-based planning capabilityThis is correct. The Planner Workspaces app (web-based) allows manual adjustments to key figures (e.g., demand plans), a standard feature, per SAP IBP’s UI capabilities.

Option B: Leveraging the functionality of SAP Work ZoneThis is incorrect. SAP Work Zone is a collaboration platform, not a planning tool for S&OP adjustments in IBP.

Option C: Using Microsoft Excel planning viewsThis is correct. The Excel add-in’s planning views are the primary interface for manual S&OP adjustments (e.g., editing Consensus Demand), per SAP IBP’s documentation.

Option D: Using Driver-Based PlanningThis is incorrect. Driver-Based Planning is a methodology (e.g., linking demand to drivers), not a direct manual adjustment method.

Thus, A and C are valid ways, per SAP IBP’s official planning interfaces.