代行 だいこう受信 じゅしん しゃ登録 とうろくであれば
daikōjushinshatōrokudeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 代行受信者登録

1. If/when a substitute receiver is registered; If there’s registration as a substitute receiver

Ba Conditional
Computing