Connections & sign-in
SharePoint Online (MFA or App ID) and on-premises NTLM.
- Connect to SharePoint Online with MFASign in with your Microsoft 365 account, including MFA and Conditional Access. No App ID or admin consent needed.
- Connect to SharePoint on-premises (NTLM)Use your Windows logon or a DOMAIN\user account to connect to SharePoint 2010–2019 or Subscription Edition.
- Connect to SharePoint Online with an App ID (certificate)Optional: sign in as a Microsoft Entra app with a certificate instead of a user account. Never interrupted by sign-in expiry.
- Microsoft sign-in errors (AADSTS700027, 700016, 7000215, 65001, 90002)What the common AADSTS sign-in codes mean for an App ID connection – certificate is not registered on the app, application not found, consent missing – and the exact fix for each.
- Certificate file errors (PEM, private key, password)Errors when you choose your own certificate file for an App ID connection, and how to make a file the app accepts.
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