A direct definition
Procurement data orchestration is the process of bringing procurement information from separate sources into a single consistent structure — reconciling supplier identity, linking contracts to the spend they govern, normalising commercial fields such as renewal mechanism and notice period, and recording where information is missing.
It is distinct from data storage and from reporting. A data warehouse holds the sources; a dashboard reports on them. Orchestration establishes the relationships between them, which is what makes a question like "where is our largest renewal exposure" answerable at all.