In some cases, you might want to extend the plugin with own features. For example, if you have systems available for business that need a very specific integration you could very much use one of the filters or actions to handle such systems yourself. Currently, the plugin is expanding its features. For example, in a near future the old SOAP interface may be replaced by a newer modern REST API solution. While we are trying to build into that system, this documentation will also cover larger integrations, that can be built in with help of the mentioned filters and actions.