jpop fansign events?

[Betsemes]

This question might sound a little stupid. I have heard and read about kpop groups fansign events ad nauseam; but curiously enough, I don't remember that to have been done by my favourite group. Necronomidol have held online events of signing chekis that I have gotten the impression are more or less fansign events usually held in person. However, I don't remember such an event being held by the group I usually follow on social media, and I'm wondering whether or not this is rarely done.