We are trying to sync a SharePoint site data into box periodically by using Box shuttle. It can be done through a O365 admin account to build this migration successfully.

However, we need to sync from a partner's SharePoint Site with a Microsoft personal outlook account since they think provide a SharePoint admin role for us to sync is too risky. Although this personal account had been invited into organization and shared as SharePoint site owner. When we try to build the migration between SharePoint online and Box by using this personal account, it will always fail during SharePoint authentication, and get following error:

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AADSTS500200: User account 'testsharepointwithbrii@outlook.com' is a personal Microsoft account. Personal Microsoft accounts are not supported for this application unless explicitly invited to an organization. Try signing out and signing back in with an organizational account.

We had tried many times to invite this personal account to organization, but still failed every time we try to authentication SharePoint. Then we confirmed with Box support, and seems this type of authentication is not allowed in Box Shuttle-SharePoint connection. So hope in future, Box could support this type of connection