適格 てきかく請求 せいきゅう しょ とう保存 ほぞん方式 ほうしきじゃなかった
tekikakuseikyū shotō hozonhōshikijanakatta

Noun
Da Copula

The past negative form of 適格請求書等保存方式

1. Was not a qualified invoice preservation method.; Wasn't an appropriate invoice storage method.

Past/Perfective
Negative
Law