> For the complete documentation index, see [llms.txt](https://kb.bevica.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kb.bevica.com/documentation/reporting-and-analytics/bevica_power_bi/dimension_hierarchies_-bevica_power_bi.md).

# Dimension Hierarchies (Bevica Power BI)

Set up parent/child dimension hierarchies for rollups in Bevica Power BI.

### Dimension Hierarchies (Bevica Power BI)

> This is available from 09/2025 versions only

> This requires additional semantic model configuration so is not part of a standard implementation

### Overview

It is common in Business Central to create nested dimensions to group dimensions at a parent/child type level. For example see standard Cronus setup on the 'Area' dimension.

When dimensions post however they are flat and no hierarchy is available as standard in Power BI. Often dimension hierarchies cannot easily be grouped because they don't follow a strict alphanumeric pattern.

### Setup

On **Dimension Values** in Bevica Power BI a new field is available **Bevica Power BI Dimension Parent.** This can be set to the parent of the dimension to be used in Bevica Power BI. The parent dimension must be an End-Total or Total 'Dimension Value Type'.

Based on the above screenshot:

* 21 ENG to 40 EU SOUTH would have their parent set as 55
* 55 would have a parent of 99

This creates a hierarchy of:

* Hierarchy L01 (Top) = 99
* Hierarchy L02 = 55 / 90
* Dimension Values = e.g. 21 ENG

So a report could show Sales in a hierarchical structure.

| Hierarchy L01 | Hierarchy L02    | DimensionValue | Sales |
| ------------- | ---------------- | -------------- | ----- |
| 99 All, Total |                  |                | 1,000 |
|               | 55 Europe, Total |                | 600   |
|               |                  | 21 ENG         | 400   |
|               |                  | 23 WALES       | 200   |
|               | 90, RoW Total    |                | 400   |
|               |                  | 65 AFRICA      | 100   |
|               |                  | 80 OCEANIA     | 300   |


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