Header Detail Screen: Additional Data 
On this detail screen, you enter data in the Additional data and Material data datasets.
General BOM Data
- Laboratory/office
In this field, you enter the laboratory/design office responsible for the product.
When you create the BOM, this value is copied from the material master record. You can update this value at any time.
- CAD indicator
The BOM automatically has this indicator set if it has been created or changed from a computer-aided design (CAD) system.
- ALE Indicator
With this indicator a BOM is flagged if it is distributed via the ALE into the SAP System.
Material Data
- Size/dimension
This field describes the dimension of the material. This is a text field and is for information only.
The value displayed in this field is taken from the material master record.
You cannot change this value in a BOM processing function.