BPCUI0460W The selected applications or subdepartments cannot be removed from the department because they cannot be moved up a level in the department hierarchy due to name conflicts with the existing applications or subdepartments at the higher level.

Explanation

When you remove an application or subdepartment from a department, the application or subcomponent is moved up to the same level as the parent department. If the application or subdepartment has the same name as an existing application or subdepartment at the higher level, it cannot be moved up. The application or subdepartment is not removed from the department.