A developer observed a specific issue in production, which they cannot reproduce in other environments.

The critical distinction is betweenstatic-content cachingandpage caching. The < iscache > ISML tag governs page-cache behavior for dynamically rendered storefront pages. In contrast, the Business Manager TTL setting for static content applies to static resources and does not control the page cache established through < iscache > . Consequently, changing static-content TTL settings would not necessarily affect the cached ISML response that is implicated in the production problem.

Option B is incorrect because B2C Commerce does not resolve multiple < iscache > directives by choosing the longest duration. Salesforce documents that the more restrictive behavior applies; where multiple cache declarations contribute to a page, the shortest applicable caching period governs rather than the highest.

Option A is too absolute. Page-cache invalidation can occur as part of relevant deployment or replication activity, so manual invalidation is not universally required in every hot-fix scenario.

The developer must therefore identify which cache layer is involved and avoid assuming that a static-content TTL adjustment changes the < iscache > -controlled page-cache entry.

Study Guide reference:Application Development — ISML page caching, < iscache > , static-content TTL, cache invalidation, and production troubleshooting.

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