The platform running, integrating with two ERPs, and the configuration within it being correct and controlled.
Monitors overnight ingestion and matching runs each morning, chasing any source file that failed to arrive or failed validation. Maintains match rules and approval matrices as the business changes, which is constant. Manages the NetSuite integration for the UK entity, which breaks more often than SAP because the acquisition never migrated. Fields questions about why a rule did not fire.
A processor changing its file format without notice and misaligning fields silently. Configuration changes that take effect with no approval trail, so nobody can say who widened a tolerance. Being asked to explain a matching outcome months later.
Overnight runs completing on schedule, no source failures reaching users, and configuration changes traceable.