(Recovered)If you are using a shared mailbox in Webmail, clicking "Contacts" may cause an error

(Updateed on January 23, 2024) This problem was fixed around 12:00 p.m. on 1/23.

(Published on January 22, 2024) Since around 1/16 (Fri.), an error has been occurring when users of shared mailboxes try to open “Contacts” from Webmail (https://outlook.office.com/). We are currently investigating the issue.
We apologize for any inconvenience this may cause, and ask that you please wait until the problem is resolved.