In larger schools it is common that more than one person is working on the timetable and on the cover plan. Some schools, especially vocational schools, are divided into departments and every department is organised by a different person.
It is not possible that two or more persons are working simultaneously with .gpn-files as only one user at a time is allowed write-access. Thus the risk of having unnecessay delays or even errors while exchanging .gpn-files occurs e.g. in case not the latest .gpn-file is being transferred.
These problems are inhibited in Untis MultiUser as more than one person is able to work simultaneously with the same data. The storage of the data in a database makes this technically possible .

This results in many advantages:
| • | The data input (Master Data, Lessons etc.) can be carried out by more than one person at the same time. |
| • | Master Data can be administered in the main office - e.g. adding of E-mail addresses or correction of phone numbers - while the scheduler works on the timetable. |
| • | Untis MultiUser has a system of authorisation. For example, users in the main office are allowed to open only certain windows and to call specific functions which minimises accidental errors. You can decide which authorisations are given to the different user groups. |
| • | Separate Departments create independently their own timetables whereas the data of the departments stay fully integrated in the entire school data. Thus it is easier to schedule resources that are used in more than one department (e.g. teachers or rooms) and statistics concerning the whole school are readily generated. |
| • | Working with the module Cover Planning is made much more flexible. For instance the input of absences in the office can be carried out independently from the substitution planner. |
| • | Furthermore, the timetabler can change the timetable in a new term while the substitution planner deals with the daily substitutions. It is not necessary to import the substitution data into the new timetable any more. |