Diagnosis
You want to create architectural object &V1& [&V2&]. Forthis object type, number assignment is set up so that numbering is basedon each higher-level object.
In the hierarchy of this higher-level object, however, there is alreadyan object with this number: &V1& [&V3&].

System Response
The system does not accept the number of the object.

Procedure
Choose a different object number.