Managing user permissions for application registrations is an important aspect of Microsoft 365 Identity and Services (exam MS-100). It involves controlling the access of individual users or groups to applications registered within an organization’s Microsoft 365 environment, thereby ensuring data security, regulatory compliance, and efficient operations.

In Azure Active Directory (Azure AD), user permissions for application registrations are managed by assigning roles. The four primary roles in Azure AD are Owner, Contributor, Reader, and Guest Inviter.

  • Owner has full access to all resources, including the right to delegate permissions to others.
  • Contributor can manage resources, but can’t delegate permissions.
  • Reader can only view existing resources.
  • Guest Inviter can manage invitations but cannot assign roles in access reviews.

In the context of application registrations, these roles can manage different aspects such as the setup and management of application properties, authentication settings, permissions to other applications, and more.

Table of Contents

An Example of Assigning User Permissions

Let’s work through an example where a user is given permission to register an application in Azure AD.

Here are the steps:

  1. Sign in to the Azure portal as a Global Administrator, Security Administrator, or Application Administrator.
  2. Select Azure Active Directory, and then select User settings.
  3. Under App registrations, select Yes for Users can register applications, and then select Save.

Following these steps will allow the selected user to register an application in Azure Active Directory.

Customizing User Permissions

To further customize user permissions, you may decide you want to give a User or Group the ability to manage only a specific app registration. In such a scenario, you would use RBAC (Role Based Access Control) features in Azure AD.

For example, if you want to assign a User the Reader role for a specific application, follow these steps:

  1. Sign in to the Azure portal.
  2. Navigate to the Azure AD application registration for which you want to assign the user a role (Azure Active Directory > App registrations > Select the application).
  3. Select Role assignments > Add.
  4. From the ‘Add a role assignment’ pane that appears, select Reader from the Role dropdown.
  5. Find the user you wish to assign the role to by typing their name into the ‘Select’ field, then selecting their name from the dropdown menu.
  6. Select Save.

The selected user is now able to view the specifics of the chosen application’s registration, but cannot make any changes or delegate permissions.

Conclusion

In conclusion, managing user permissions for application registrations within Azure AD involves understanding your users’ roles and responsibilities within the organization, and then aligning these with the appropriate levels of access within the Azure AD environment. Regularly reviewing and updating these permissions will help to ensure the right balance between user flexibility and organizational security.

Practice Test

True or False: You can manage user permissions for application registrations in the Azure portal.

  • True
  • False

Answer: True

Explanation: Azure Active Directory provides a simple step-by-step user interface for connecting various applications to Azure AD.

Which of the following user permissions should be granted at a minimum for application registrations in Azure Active Directory? (Multiple Select)

  • a) Read all users’ full profiles
  • b) Sign in and read user profile
  • c) Read all users’ basic profiles
  • d) Read directory data

Answer: b) Sign in and read user profile and c) Read all users’ basic profiles

Explanation: To authorize the registered application, only the ‘Sign in and read user profile’ and ‘Read all users’ basic profiles’ permissions are required at the minimum.

True or False: Global administrator or a Privileged Role Administrator can manage user permissions for any application in Azure AD.

  • True
  • False

Answer: True

Explanation: A Global administrator or a Privileged Role Administrator have access to all administrative features and can assign or remove any administrative roles to users.

Single Select: In Azure AD, if you are assigning application permissions, what type is it?

  • a) Delegated
  • b) Direct
  • c) Application
  • d) Admin

Answer: c) Application

Explanation: Application permissions are used by apps that run without a signed-in user present.

Only Global administrators can grant permissions to an application for sensitive Directory.Read.All and Directory.ReadWrite.All permissions. True or False?

  • True
  • False

Answer: True

Explanation: These permissions allow an application to read or write data of other users in the directory and only Global administrators can grant these permissions.

Which role can assign a user the ability to register an application in Azure AD? (Single select)

  • a) User
  • b) Owner
  • c) Administrator
  • d) Cloud Application Administrator

Answer: d) Cloud Application Administrator

Explanation: A Cloud Application Administrator can register an application in addition to managing services and identities.

True or False: API permissions include both Delegated and Application permissions.

  • True
  • False

Answer: True

Explanation: API permissions declare the access level that an application needs on a resource.

Who can provide consent for application’s permissions requests in Azure AD? (Multiple select)

  • a) End-user
  • b) Admin
  • c) Global admin
  • d) Application owner

Answer: b) Admin, c) Global admin

Explanation: Only administrators or global administrators can provide consent to the application’s permissions requests.

True or False: Delegated permissions are used by apps that have a signed-in user present.

  • True
  • False

Answer: True

Explanation: Delegated permissions are used by apps that have a signed-in user present.

Single Select: Which of the following Azure AD roles can manage all aspects of application registrations?

  • a) Owner
  • b) Global Administrator
  • c) Application Administrator
  • d) User

Answer: c) Application Administrator

Explanation: The Application Administrator has the ability to consent to application permissions and manage all aspects of application registrations.

Single Select: What type of permissions is most suitable when you want to grant access to an app that needs to read data on behalf of the signed-in user?

  • a) Delegated Permissions
  • b) Application Permissions
  • c) Directory Permissions
  • d) User Permissions

Answer: a) Delegated Permissions

Explanation: Delegated permissions are used by applications that have a signed-in user present; the app is effectively impersonating the user to perform the read.

True or False: Once consent is granted for an application, it cannot be withdrawn.

  • True
  • False

Answer: False

Explanation: Consent given at any scope (user or admin) can be revoked by a Global Administrator using the Azure portal.

To manage user permissions for application registrations in Microsoft 365, you need to be a Global Administrator. True or False?

  • True
  • False

Answer: False

Explanation: While a Global Administrator can manage user permissions for applications, other roles such as Application Administrator and Cloud Application Administrator can also do this.

Multiple Select: Which of the following Azure AD roles can consent to an application’s permission requests?

  • a) User
  • b) Global Administrator
  • c) Application Administrator
  • d) Cloud Application Administrator

Answer: b) Global Administrator, c) Application Administrator

Explanation: Both Global Administrator and Application Administrator can provide consent to applications based on their permissions requests in Azure AD.

Single Select: Which of the following Azure AD roles can register if a new application needs to be added?

  • a) Direct
  • b) Global Administrator
  • c) User
  • d) Application Administrator

Answer: b) Global Administrator

Explanation: A Global Administrator has the privilege to register a new application in Azure AD.

Interview Questions

1. How can you grant permissions to an application registration in Microsoft 365?

You can grant permissions to an application registration by using Azure AD App registrations.

2. What role can grant permissions to an application registration to access resources in Microsoft 365?

The global administrator or application administrator role can grant permissions to an application registration.

3. What is the minimum permission required for an application registration to read user profiles in Microsoft 365?

The application registration requires the User.Read permission to read user profiles in Microsoft 365.

4. How can you manage permissions for an application registration that needs access to specific APIs in Microsoft 365?

You can manage permissions for an application registration by assigning the appropriate application permissions or delegated permissions to access specific APIs.

5. What actions can an application registration perform with delegated permissions in Microsoft 365?

An application registration with delegated permissions can only perform actions on behalf of a signed-in user.

6. How can you review and modify the permissions granted to an application registration in Microsoft 365?

You can review and modify the permissions granted to an application registration by accessing the Azure Portal, navigating to the application registration, and modifying the API permissions.

7. Can you restrict the permissions granted to an application registration in Microsoft 365?

Yes, you can restrict the permissions granted to an application registration by selecting specific APIs and operations when assigning permissions.

8. What is the difference between application permissions and delegated permissions for an application registration in Microsoft 365?

Application permissions allow an application registration to act without a signed-in user, while delegated permissions require a signed-in user’s consent to act on their behalf.

9. How can you ensure that an application registration has the necessary permissions to access Microsoft 365 services securely?

You can ensure that an application registration has the necessary permissions by following the principle of least privilege and only granting required permissions.

10. What tool can you use to manage user permissions for application registrations efficiently in Microsoft 365?

You can use the Azure Portal to manage user permissions for application registrations effectively.

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