This is not a SD related issue. Ask your FI consultant to configure Cost Component correctly. That should be the root cause of the issue. Once the system gives that error, if you click on one yellow question mark icon, it will take you to a long text of that error message which you can share to your FI team. Based on that explanation, they will be able to identify and resolve the issue. Alternatively, I will move this thread to FI forum, upon hearing from you.
G. Lakshmipathi