Before importing level structures, what setup and configuration is a necessary predecessor?

In the Workday Adaptive Planning implementation sequence, Time and Versions configuration must be completed before importing level structures. This sequencing is mandatory because levels exist within the context of versions and time periods — each level's data, access rules, and planning activity are bound to specific versions and time periods defined in the system. Without established versions and a configured time calendar, the system lacks the structural framework necessary to associate imported levels with planning periods and versions. Importing levels into an instance without Time and Versions configured would result in incomplete or broken level configurations. Users and Security are configured after the organizational structure (levels) is established. Currencies are important but are not a blocking prerequisite for level import. Account Default Formulas are a model configuration step that occurs after both time/versions and levels are established. Time and Versions is the foundational configuration layer that must precede all organizational structure imports. Reference: Workday Adaptive Planning — Implementation Sequence, Level Import Prerequisites, Time and Version Configuration.