SAP Message CACSIB153 - External subobject &/& for business object &/& not in system

Diagnosis
You have specified a sub-object in the commission case that does notyet exist in the system, but you have not named this with the changecategory "new" (or "rebundle").

System Response
The new object is created.

Procedure
Check to see whether there has been an input error during the interfacefeed (for example, with external object identification).