Change assessment interviews in SAP OCM (Prepare phase) require informed respondents. Option C is correct because partners with an overview of the project—its goals (e.g., cost reduction) and impacts (e.g., process shifts)—can provide strategic insights, often leaders or key users briefed early. Option D is correct as company knowledge (e.g., past change successes/failures) enables contextual answers, grounding feedback in organizational reality—e.g., “We struggled with training last time.”

Option A is incorrect—employee-level staff may represent users but often lack the broad perspective needed; key users suffice. Option B is incorrect; OCM experience is helpful but not required—interviewees provide data, not advice. SAP OCM seeks knowledgeable, experienced voices.

“Suitable interview partners have project overview and company experience to offer informed insights for the change assessment” (SAP OCM Framework, Interview Partner Selection).