For buyers contracting authority
Pick 72321000 when the deliverable is an enriched or value-added data product and the access to it: a subscription to a maintained legal, regulatory or company database, the production of a curated reference dataset, or the publication and reuse of open public data. A contracting authority reaches for it when the value sits in the content and its enrichment, not in running a system the authority already owns.
The boundary that trips authorities is the sibling Data management services (72322000). That sibling is about stewardship: governing, cleaning and operating the data lifecycle as a continuing service. 72321000 is about the data product itself, the curated or enriched content delivered for access and reuse. If the contract's main job is supplying or enriching a dataset rather than managing the authority's own data, tag it here.
Two more neighbours matter. The parent Database services (72320000) is the broader category for designing, populating and running databases, and Data-processing services (72310000) is the right pick when the contract transforms data to produce a defined output rather than supplying an enriched product on subscription. Where a single contract folds database access into a larger IT programme, set the primary CPV code by the dominant deliverable, not by the whole bundle.