The Imperial Court of the time had the opportunity to learn about the Ritsuryo system and its basic concepts through talks with the Sui Dynasty (envoys to the Sui Dynasty, including Einichi, returned Japan in 622 and reported to Empress Suiko on the Tang Dynasty's Ritsuryo system) but they were not capable enough to put this knowledge into practice.
当時の朝廷は、隋との交渉の中で、律令制とその基本理念を知る機会はあった（622年に帰国した遣隋使の恵日らが推古天皇に唐の律令制について報告している）が、それを実行に移す能力は未だ朝廷に備わっていなかった。