Line item details provide specific transactional information about a purchased product, such as the quantity ordered and the price paid. This information is critical for category managers who rely on spend data to analyse patterns, negotiate supplier agreements, and benchmark costs.

Other details such as functionality or components are not typically captured in line item data. These relate more to specifications and technical design documents rather than financial records.

By analysing line item data across multiple purchases, category managers can identify trends such as bulk-buying opportunities, price fluctuations, and supplier performance. It also assists in spend analysis, which is a fundamental step in category management for mapping categories and identifying cost-saving opportunities.

[Ref: CIPS L5M6 Study Guide, p.134 -- Line item detail in spend analysis]