Error messages in cost estimate

Hi all,

I have a question regarding the error messages in cost estimate (CK11N).

Where can I customize them (meaning f.e. change from warning into error).

I already found some messages in

IMG-

Controlling-

Product Cost Controlling-

Product Cost Planning-

Basic Setting for Material Costing-

Error Management-

Define User-Defined Message Types.

But there are still some messges I cannot find there.

Any suggestions?

Thanks

Anne