zypper remove package

will not work you got an error like this

In case ‘exmaple’ is not a typo it’s probably not a built-in command, but provided as a subcommand or plug-in (see ‘zypper help subcommand’).
In this case a specific package providing the subcommand needs to be installed first. Those packages are often named ‘zypper-exmaple’ or ‘zypper-exmaple’.

solution is

zypper remove -u package