SAP Message RU609 - Profile &1 is already defined as the standard profile

Diagnosis
Only one profile can be defined as a standard profile for single screenentry and time ticket confirmations respectively.
You want to define the selected profile as a standard profile, althoughthe existing profile &V1& is already defined as the standard profile inthe same application.

System Response
The setting cannot be saved.

Procedure
Deactivate the 'Standard profile' indicator in the &V1& profile. Youcan then define the selected profile as the standard profile.