Completeness testing
Records with provenance, not records with volume.
Who to leave out is settled at the same moment as who to include. Gaps are measured and reported, not interpolated. Nothing in the file is there to reach a total.
Coverage by field
Which fields are populated and how often, reported per segment instead of as one average.
Sending identity
Separating what you send in volume from how your main domain is treated.
Matching
Reconciling what you hold against what is current, with disagreements surfaced rather than silently resolved.