実効 じっこう利用 りよう しゃID あいでぃうではありませんでした
jikkōriyō shā idiudewa arimasendeshita

Noun
Desu Copula

The polite, past negative form of 実効利用者ID

1. Was not an effective user ID.; Was not a valid user ID.

Past/Perfective
Negative
Polite
Formal Register
Computing