Configuring Azure AD B2B settings is an essential step in enabling external user access management and collaboration within your Azure Active Directory (AD) environment. Follow these step-by-step instructions to configure Azure AD B2B settings effectively.

1. Access the Azure AD Portal: Log in to the Azure portal (https://portal.azure.com) using your administrator credentials.
2. Navigate to Azure AD B2B Settings: In the Azure portal, search for and select “Azure Active Directory” from the services.
3. Access B2B Collaboration Settings: Within the Azure AD dashboard, navigate to “External Identities” in the left-hand menu and select “Azure AD B2B Collaboration.”
4. Enable External Collaboration: Under the “Settings” tab, locate the “External Collaboration” section. Toggle the switch to enable external collaboration with partner organizations.
5. Define Collaboration Policies: In the “Collaboration Policies” section, specify the collaboration policies that align with your organization’s requirements. These policies control the level of access and behavior of external users.
6. Customize Invitation Settings: Customize the invitation settings to align with your organization’s branding and communication preferences. You can modify the invitation email content, branding logo, and default invitation expiration period.
7. Manage Collaboration Providers: In the “Collaboration Providers” section, you can manage the list of collaboration providers that are trusted to send invitations on behalf of your organization. You can add or remove providers based on your requirements.
8. Configure Terms of Use: Define the terms of use that external users must accept before accessing your resources. Specify any legal terms, compliance requirements, or acceptable use policies that apply to external collaboration.
9. Review and Save Changes: Double-check all the settings you have configured. Once you are satisfied, click on the “Save” or “Apply” button to save your changes.
10. Validate the Configuration: Test the configuration by inviting a test user from a partner organization to collaborate on a resource within your Azure AD environment. Ensure the invited user can successfully access and collaborate based on the defined policies.

By following these step-by-step instructions, you can effectively configure Azure AD B2B settings to enable external user access and collaboration within your organization. Ensure that you review and update these settings periodically to align with your evolving collaboration needs.

For additional guidance and detailed documentation, refer to Microsoft’s Azure AD B2B Collaboration documentation.