Other Intune-related topics, including unsupported scenarios and platform-specific behaviors
You cannot have both Azure AD Connect and the Intune Offline Domain Join (ODJ) Connector installed on the same server. Each connector serves different purposes and is designed to operate independently. Azure AD Connect is used to synchronize on-premises directories with Azure Active Directory, while the Intune ODJ Connector is specifically for joining computers to an on-premises domain during the Windows Autopilot process.
If you already have Azure AD Connect installed, it's advisable to keep it on a separate server from the Intune ODJ Connector to avoid any potential conflicts or issues with object duplication in Azure AD.
For your migration from SCCM to Intune, you can set up the Intune ODJ Connector on a different server to manage the enrollment process without interfering with Azure AD Connect's functionality.