SAP Message RSDRO123 - Key value exists in duplicate (not allowed by the DataStore type)

Diagnosis
A key value was loaded for the second time. The type of DataStore objectset is not allowed for overwriting data records. In this case,you are not allowed to load a key value twice.

System Response
Request &v1& / data package &v2&

Procedure
Either delete the request without posting the already existing datarecords again, or remove the data records with the critical key valuesby selectively deleting from the table for the active data.