如何在Office 365中的父文件夹中创建子文件夹

I created a sub folder in the inbox, but I haven't created a sub folder for the new parent folder. I tried to set permission and run my code it's not use.

eg :

URL:https://outlook.office.com/api/v2.0/Me/MailFolders/voicemail/childfolders

Voicemail -parent folder,I tried  to create a subfolder like inbound folder.

It showed error :

"error":{"code":"ErrorFolderNotFound","message":"The specified folder could not be found in the store."}.

How to set permission for creating sub folder in the parent folder using Rest API,PHP ?