# Bom

The BOM object is of type PsObject and gets generated based on the result of the function [Get-BomRows](/code_reference/commandlets/show-bomwindow/required-functions/get-bomrows) .\
Therefore \$boms are usually extended  [powerVault Files](powervault:code_reference/objects/file) or  [powerVault Items](powervault:code_reference/objects/item).

## Syntax

```{code-block} powershell
:linenos: true

$bom.Children
```

Following properties are always available :

| Type                                                                   | Name            | Description                                                                                                                                                             |
|------------------------------------------------------------------------|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [BomRow[]](/code_reference/commandlets/show-bomwindow/objects/bomrow)  | Children        | All the child rows returned from the function [Get-BomRows](/code_reference/commandlets/show-bomwindow/required-functions/get-bomrows) as Array of [BomRows](bomrow) . |
| [Status](/bom_window/status)                                           | \_Status        | The current status of the BOM in the [BOM Tab](bomrow).                                                                                                                |
| string                                                                 | \_StatusDetails | The BOM's [Status Details](/bom_window/status) which are displayed in the *Status Details* column and when hovering over the BOM status in the [BOM Tab](bomrow).     |
| string                                                                 | \_Name          | The name of the BOM header, that gets displayed in the [BOM Tab](bomrow) column 'Name'.                                                                                |


## Remarks

A list of \$boms gets passed into the functions:

- [Check-Boms](/code_reference/commandlets/show-bomwindow/required-functions/check-boms) 
- [Transfer-Boms](/code_reference/commandlets/show-bomwindow/required-functions/transfer-boms) 

### Entity Properties

The BOM object directly provides all the information of the Header [Item](/code_reference/commandlets/show-bomwindow/objects/item) , for instance the *Name* of the according root item.\
These are all the properties declared with simple names (not starting with the prefix *'Bom\_'*).

At least following **standard properties** should always be available: `_Name`.

All the other properties are **custom properties** that can be [displayed](/bom_window/customization) in both the [BOM Tab](/bom_window) and the [Item Tab](/bom_window).\
For example `Description`, `_Category` or all the other dynamically generated members of a  [powerVault File](powervault:code_reference/objects/file) or [powerVault Item](powervault:code_reference/objects/item).

### BOM Properties

This are all the properties with the prefix *'Bom\_'*, like e.g. `Bom_Number`, `Bom_PositionNumber`, `Bom_Unit`, ...\
In contrast to [BomRows](/code_reference/commandlets/show-bomwindow/objects/bomrow) , the BOM object can only provide **custom properties** and there are **no standard properties** at all!\
BOM properties can only be [displayed](/bom_window/customization) in the [BOM Tab](/bom_window).