Copy/paste from my translation thread.

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Some people (including myself) asked on the forums if it's possible to have materia attachment request like bazaar where you can put up the mats + material on your bazaar and other can come and attempt attachment. Here's response to that one

Quote Originally Posted by Triairy View Post
こんばんは。
Good Evening,

多くのご要望を頂いているマテリア装着をバザーと同じように、
依頼を出せるようにしてほしいという件ですが、こちらは開発チームでも必要な機能だと考えており、
実装に向け対応を進めております。
Regarding where many have requested to be able to have materia attached like bazaar; the dev team also believes this is a needed feature and they are working towards release.

時期についてお約束することができないのですが、
進捗があり次第またお知らせいたしますの、お待ちいただければと思います。
We cannot tell you when this will be ready but if there are any updated will let you know so please hang in there.

フィードバックありがとうございました。
Thanks for the feedbacks
Hope they do it right; this would be a nice feature to have for sure
Specially for people like me who play at weird time when no one is hardly on and can't ask friends to attach Only problem I see is if it breaks some might go crazy... but it's risk they will be making by putting it up to have it attached, if you're scared don't put it up