Error during data derivation - No valid UT workspace available

Question:

What can be the cause of an invalid UT Workspace during data derivation? 

Answer:

Too many rights may have been assigned. 

Example: the user utarc has been assigned with the role "sysadmin". 

If the user who performs the derivation, e.g. utarc, has been assigned with the role "sysadmin" on the database, the UT schema tool will search for all tables under the identifier "dbo"(SQL Server). This can also lead to new tables being created. -> Fatal!

The user utarc must NOT be assigned the role "sysadmin". This user only needs the role "public".