UD1 - UD8 Dimensions are a type of dimension extensions.

• A. True
• B. False
• C. Not sure
• D. Never

Answer: (A)

UD1 through UD8 are user-defined dimensions in OneStream. These provide extra axes to the data model, capturing custom attributes or groupings beyond the standard dimensions. They extend the dimensionality of cubes without changing core dimensions, enabling more flexible reporting and planning. You define and populate these UD dimensions in the application and then use them in forms, grids, rules, and data loads just like other dimensions. Because they function as additional dimensions that expand how data can be analyzed, stating that UD1–UD8 dimensions are a type of dimension extension is correct.