What type of sheet is primarily used for record-based data with custom fields?

The correct answer is Detail Sheet. A Detail Sheet is specifically designed for capturing record-based data, which includes structured information that may have various attributes or custom fields. This type of sheet allows users to input detailed data on individual records, making it suitable for tracking specific items or entries in a structured format.

In the context of Workday Adaptive Planning, Detail Sheets provide the flexibility to define custom fields unique to the organization's needs. This capability enables users to tailor the data entry to align with specific business processes or reporting requirements. Such sheets are instrumental when dealing with datasets that need to be recorded and analyzed on a granular level, making them essential for operational tasks.

Other types of sheets like Cube Sheets, User Assign Sheets, and Model Sheets serve different purposes within the Workday Adaptive Planning framework. Cube Sheets are more focused on multidimensional data and aggregations, while User Assign Sheets are used for assigning resources or tasks to users. Model Sheets, on the other hand, are primarily for creating financial models and projections. Thus, they do not cater to the needs of capturing detailed, record-based data with custom fields in the same way that Detail Sheets do.