We now have some very comprehensive guides to transport options from Japan airports to hotels. These are designed for those wanting to understand and consider the public transport options.
Agents doing customer journey calls can send these documents from the CJ - Docs+3 follow-up - Japan, South Korea, Taiwan template.
update as of 18/3/25
Customer Journey Template for Japan already includes the above links. CS would need to find out what airport they are arriving/leaving from to send the correct document.
Keywords: arrival instructions, japan transfer guide, airport transport info, local transit guide