Okay thanks. The approach should work for me! Note: although I would have preferred to
be able to accept data supplied for the "normal" columns (e.g. payload) and silently have the system correct the "tech" columns (e.g. createdBy/On, updatedBy/On) in case needed by overwriting user input rather than reject all input in case inproper values (incorrect username or timestamps too far off) in the techcols are detected.
