A customer asking for an exact product code is not asking for something that merely sounds similar. Semantic similarity can miss the difference between neighboring identifiers, an obsolete brochure, and a currently approved item. Test exact codes separately from ordinary descriptions, including mixed-language queries and identifiers differing by just one character. Apply valid-date, approved-status, and customer-scope filters before assembling the answer. Make any near match explicit rather than presenting it as exact. Check whether staff choose the correct item and how much verification remains. Retrieval should respect both precise identifiers and the business context around them. Original article explainer. AI-assisted conceptual illustration and neural narration; original synthesized music. Not a human recording or customer result.