Diagnosis
Object ABCDEF is in namespace /ABC/. However, this namespace does not exist in your SAP system.
Objects from the namespace /ABC/ can only be edited if the namespace is in the namespace tables.
System Response
Editing is terminated.
Procedure
Choose an object name that is not assigned to the namespace /ABC/ (this means that it cannot begin with /ABC/).
For a list of the namespace prefixes in the SAP system, go to the Transport Organizer tools (Transaction SE03) and choose -> Objects -> Namespace Information System -> Select namespace.
