SAP Message APPLG758 - DCW: Source for new global class could not be created; see long text

Diagnosis
Source for new global class could not be created.

System Response
A class with the same name as the new class has already been deleted.
The new global class has been created. The sources are missing.

Procedure
Make sure that you have authorization to create source code for globalclasses.
The data container wizard may have created incorrect sources (forexample, a DDIC name may have been too long).