What process does workflow manage within planning?

Workflow management in planning is crucial for ensuring that data is entered, reviewed, and approved according to predefined business rules and standards. This process is primarily focused on managing approvals for data entries or modifications, which helps maintain data integrity and compliance within the planning environment. By controlling who can approve or reject changes to data entries, workflow ensures that all planning activities align with organizational policies and standards.

In contrast, the other options address different aspects of the planning process. Custom hierarchical displays relate to how data is visualized and structured but do not directly manage workflow processes. Currency details pertain to how financial data is represented and utilized but do not involve approval workflows. Version setting configurations deal with managing different iterations or versions of planning data, which is a separate function from workflow management. Thus, the focus on approval processes makes this option the most relevant concerning how workflow operates within the planning framework.