You're welcome! Conditional Access policies in Microsoft 365 can be powerful tools for enforcing access controls, but there are a few prerequisites and considerations to keep in mind, especially in your scenario:
1. **Azure AD Premium license**: Conditional Access policies require an Azure AD Premium P1 or P2 license for each user.
2. **Hybrid Azure AD Join**: If you're using on-premises Active Directory joined devices, ensure they are hybrid Azure AD joined. This allows you to apply conditional access policies to on-premises devices as well.
3. **Device Compliance**: To enforce conditional access based on device compliance, you'll need to use Microsoft Intune or a third-party mobile device management (MDM) solution. This allows you to ensure that devices meet certain security requirements before granting access to Microsoft 365 services.
4. **Azure AD Join**: While not applicable to your scenario with personal laptops, Azure AD join or hybrid Azure AD join provides additional device management capabilities and can be a prerequisite for certain conditional access scenarios.
In your case, since you want to restrict access from personal laptops, you won't have control over those devices. Therefore, you'll need to rely on user-based conditional access policies, such as blocking access from devices not managed by your organization.
Keep in mind that conditional access policies work best when combined with other security measures, such as multi-factor authentication (MFA) and regular security assessments. This helps to provide layered protection for your organization's resources.
