As when working with .gpn files, we recommend that you make backups on a regular basis when you work with Untis MultiUser. There are various possibilities for this:
Save the data of the database to a .gpn file (see chapter Database and .gpn file ) and store the .gpn file in a safe place (local hard drive, CD-ROM etc.).
If you are working with MS Access then compress the database (.mdb file) in Access via "File | Manage | Compress and repair database" and maybe additionally with WinZip and store the .mdb file in a safe place (local hard drive, CD-ROM etc.).
MySQL and MS SQL provide their own tools for backing up the database. Please consult the relevant documentation to find out more.
Backup via command line
As of the 2016 version you can use the command line to safe data in a .gpn file.
The following example will explain the syntax:
Untis.exe DB~1~2016-2017~1 /user=Administrator /pw=abcd /backup=C:\temp\backup.gpn
This will create the file backup.gpn in the directory C:\temp - for this backup the administrator access is used (password: abcd).