During a service review, a customer states that the service 'works well' but they are not achieving the expected business benefits. According to ITIL 4, this indicates a shortfall in which aspect of the service?
Utility concerns the functionality offered by a service and whether it enables the customer's required outcomes — "fit for purpose". The customer confirms the service performs ("works well") yet business benefits are absent, so the shortfall lies in utility's outcome contribution, not warranty's assurance of availability, capacity, security or continuity.
Why this answer
Utility in ITIL 4 refers to the functionality offered by a service to meet a specific need—the 'what it does' that enables desired business outcomes. When the customer says the service 'works well' but fails to deliver expected business benefits, the shortfall is in utility, because the service's features or capabilities are not aligned with or sufficient to achieve the intended outcomes. This is distinct from warranty, which covers availability, capacity, continuity, and security—the 'how it is delivered'.
Exam trap
The trap here is that candidates confuse 'works well' (which implies good warranty) with overall service success, and incorrectly assume the problem must be warranty-related, when ITIL 4 explicitly separates utility (fitness for purpose) from warranty (fitness for use).
How to eliminate wrong answers
Option B (Warranty) is wrong because warranty ensures the service is available, reliable, and secure when needed; the customer already stated the service 'works well', so warranty is not the issue. Option C (Risk) is wrong because risk is an inherent uncertainty that could affect outcomes, but the question explicitly describes a gap in achieving expected benefits, not a risk event or mitigation failure. Option D (Cost) is wrong because cost relates to the financial resources consumed by the service; the customer's complaint is about missing business benefits, not about the service being too expensive or over budget.