Someone shared a folder to (my) email1.
I made an account using email2, + linked that acct to email1.
I could see the shared folder + can still see that shared folder.
BUT ... then I removed linked email1 from my account, and now I can't (re)-link to email1 again ... and actually now I cannot link to ANY OTHER EMAIL addr. (including "i just made that up" email, which can't possibly already be associated with another box account)
Top-shelf (useless, opaque) err msg: "There was an error while trying to add anything@wherever.info to your account."
POST https://app.box.com/app-api/enduserapp/account-settings/account/add-email
{"status":400,"errorCode":"updateAccountSettingsError","data":{"error":"saveFailed"}}
... I tried two different web browsers; no saved cookies; fix your app
I see many "cannot link to email" support forum messages, and that free accounts are generously granted no way to directly open support tickets, so here's another "link-email (still) fails" msg.