Symptom
- Dimension descriptions changed to ID in the model of SAP Analytics Cloud
- A model is generated from data.
- The system creates single‑column dimensions with default descriptions equal to the dimension name.
- When a Dimension Table is created for these dimensions, its description overrides the original dimension description.
- Legacy metadata objects (
Cube_,DimensionT) still exist but are not updated, creating “ghost descriptions.” - After enabling DimensionReuse functionality, the description priority changes, leading to unexpected description behavior.
Environment
- SAP Analytics Cloud 2026.02 (SAC)
Reproducing the Issue
- Generate a model from data.
- Observe that dimensions appear as single-column dimensions with default descriptions.
- Save the model and re-open it again.
- Create a Dimension Table for one of these dimensions.
- Check that the Dimension Table description overrides the original dimension description.
- Enable DimensionReuse.
- Create or reuse a dimension.
- Observe that now the CubeDimension description takes precedence.
Cause
-
Originally, the system did not allow different names for:
- the Master Data Dimension
- the Dimension Table.
Therefore:
- When a Dimension Table was created, its description took precedence and replaced the single-column dimension description.
- Old metadata entries were retained for compatibility, but no longer maintained.
With the functionality DimensionReuse, the name dependency is removed:
- The Master Data Dimension and the Dimension Table can now have different names.
- The system therefore updates the description priority logic.
Resolution
New behavior with DimensionReuse
Once DimensionReuse is enabled:
- The description of the Cube Dimension takes priority over the Master Data Dimension description.
Priority Before DimensionReuse
MasterdataDimension Description > CubeDimension Description
Priority After DimensionReuse
CubeDimension Description > MasterdataDimension Description
See Also
- “Ghost descriptions” in
Cube_andDimensionTmetadata tables remain for backward compatibility. - These entries are not used by the new logic and are not updated.
- After enabling DimensionReuse, review dimension descriptions to ensure consistency across:
- Master Data Dimensions
- Dimension Tables
- Cube Dimensions
-
Reuse Dimension is a new functionality, which is available as of QRC1 2026 please check this Whats' New Section
https://help.sap.com/whats-new/42e4f84a0e5e458792b1047eaf81c31a?Area=Modeling
Reuse Public Dimensions
When adding a new dimension to a model (in the modeler) that is based on an existing public dimension you can now provide a unique model dimension name which can differ from the public dimension name. This allows you to reuse the public dimension multiple times within the model.
This is design change and the public Dim Description can be changed anytime during the model creation / edit .
Keywords
Dimension, Dimension Table, Single Column Dimension, DimensionReuse, Description Priority, CubeDimension, MasterdataDimension, Ghost Metadata, SAP Model Generation , KBA , LOD-ANA-ML , SAC Modelling , Problem
SAP Knowledge Base Article - Public