When creating new WBS you are able to create a WBS that diverges from project ID. For example
Project ID is T.22.1111
You are able to create a WBS ID as T.22.0001
SAP S/4HANA Cloud.
Reproducing the Issue
- Go to project control app.
- Select a project.
- Click Edit in and select project planning.
- Create a new WBS diverging from project ID.
This is the standard behavior of the system.
This is the standard behavior of the system and currently there is no validation for the WBS ID to be equal to the project.
If you would like to have a validation of this kind, you may implement a BADI to adequate to your requirements.
The below URLs present some of the extensibility possibilities that you may use:
Project Control, planning, work breakdown structure , KBA , PS-FIO-STR , Fiori UI for Project Systems-Structures , PPM-FIO , Fiori UI , Problem