The workflow component, Infor System-Link request is a prerequisite for other Infor System-Link components like the Create attachment with Infor System-Link component.
The Infor System-Link request component has this parameter:
In order to the System-Link workflow components, a System-Link instance has to be configured in tenant settings, which is referred to above.
Log in as tenant administrator and select "settings" from the top navigation bar.
In the section "Infor System-Link" you can create a new System-Link instance: