Though few records exist, it is thought that Dae Wihae made progress in diplomatic fields, having sent delegates, Baejeong (裵頲) to Japan, and osodo (烏炤度) to Tang dynasty China, in 894 and 905 respectively.
Though few historical accounts are available, it is believed that Dae Wihae made progress in diplomatic fields by sending Baejeong (裵頲) to Japan in 894 and osodo (烏炤度) to the Tang dynasty China in 905.