Determining the Structure Information about BOMs 
Use
Here the automatic completion of the structure with the help of BOMs is described in detail. The system carries out all the work steps.
Prerequisites
In Customizing for Configuration Management, you determine for each individual life cycle phase, which
BOM usages are planned. You select the work step Application control ® Define life cycle profile ® Life cycle phases ® Selected usages.Process Flow
When you create a Baseline, the system carries out the following steps to complete the structure.

If you have made the settings in Customizing, you then only have to manually copy a BOM into the structure of the configuration folder if you want to fix the BOM to another usage in the Baseline that is not planned in Customizing of the life cycle phase.
If you have changed a BOM with reference to an ECR/ECO, then only the ECRs/ECOs that you have released up to the Baseline date are taken into consideration in the Baseline.

By clicking on
in the structure of the Baseline, you can display this list.
This happens irrespective of whether the object is flagged as relevant for Configuration Management or not. It does not mean that the object is also fixed.
If the object is flagged as relevant,
If the object is flagged as not relevant,
See also:
Fixing a BOM