In principle, applicants can take part in the UHSTAT1 survey at any time. However, for identification a number is required: If you do not have an Austrian social security number, please inquire at your university about your so-called substitute code (Ersatzkennzeichen).
The survey form UHSTAT1 must be completed only once per person. For each admission (registration or admission respectively), the respective university inquires at Statistics Austria whether UHSTAT1 has already been completed. If this is confirmed by Statistics Austria, a repeated completion of the survey form UHSTAT1 is not required. However, it is possible to fill in UHSTAT1 more than once. If there are several UHSTAT1-messages of one person, the most recent message applies. In this way, data can also be corrected.