What happens to the existing department information when classes are converted to departments?

When classes are converted to departments in NetSuite, the existing department information is actually retained alongside the new classifications. This means that transitioning from classes to departments does not lead to the destruction of previous data; instead, both the new department classifications and the old class information coexist in the system. This retention allows for historical reporting and maintains consistency in data management. It is crucial for users to have access to both sets of information for tracking purposes and to ensure that data integrity is upheld during the transition process.