This dialog comes up only if you have deleted a record within a combobox, but this record is still in use in SIHOT. If you wish to store a dialog containing such a deleted combobox entry, you must enter another, valid combobox entry instead.
If you come across a field showing ???, it means that the field contains a combobox record which was deleted at a later stage.
Figure 47: Field with a deleted combobox record and dialog combobox selection