References

Please refer to the following links for more information:

• Refer to https://docs.microsoft.com/en-us/azure/active-directory/hybrid/plan-hybrid-identity-design-considerations-business-needs?wt.mc_id=4039827 to help you to plan for hybrid identity.
• Information on how to select the most appropriate synchronization method for Azure AD Connect can be found at https://docs.microsoft.com/en-us/azure/security/fundamentals/choose-ad-authn.
• For help with additional authentication security, please refer to https://docs.microsoft.com/en-us/azure/active-directory/authentication/concept-mfa-howitworks, https://docs.microsoft.com/en-us/azure/active-directory/authentication/concept-sspr-howitworks, and https://docs.microsoft.com/en-us/azure/active-directory/conditional-access/overview.
• Further guidance on troubleshooting synchronization with Azure AD Connect can be found at https://docs.microsoft.com/en-us/azure/active-directory/hybrid/tshoot-connect-objectsync.