01Where orphaned listings hides
In other words, give one person the logins and one document the truth; ambiguity is what causes drift, regardless of sector.
02Aligning without drift
The order matters: cross-confirm first, then consolidate, and only then submit anywhere new.
03Ground rules
Beyond that set aside time to map as part of the monthly reporting cycle rather than treating it as a one-off project.
04Where an abandoned profile hides
Keep a change log; six months on, nobody remembers which field was edited or why.
05The aggregator feeds confirm
Confirm by phone or postcode lookup, not by memory.