Get-MgUserAppRoleAssignment Cmdlet Guide

The Get-MgUserAppRoleAssignment cmdlet allows administrators to retrieve application role assignments that have been granted to a specific user in Microsoft Entra ID (Azure AD). These role assignments typically represent the delegated access a user has been given to enterprise applications through service principal definitions.

Cmdlet Syntax

Get-MgUserAppRoleAssignment -UserId  [-All] [-Top ] [-Filter ] [-Property ] [-ExpandProperty ]

Key Parameter:

• -UserId: The unique identifier (GUID or UPN) of the user whose app role assignments you want to retrieve.

Usage Examples

1. Retrieve All App Role Assignments for a Specific User

Get-MgUserAppRoleAssignment -UserId "samadmin@7xh7fj.onmicrosoft.com" |
Format-List Id, AppRoleID, CreationTimestamp, PrincipalDisplayName, PrincipalId, PrincipalType, ResourceDisplayName



This command fetches all app role assignments for the specified user and formats them into a readable list.

2. Get Top 5 App Role Assignments

Get-MgUserAppRoleAssignment -UserId "alex.johnson@domain.com" -Top 5



Limits the result to the first 5 app role assignments for quicker retrieval and testing.

3. Retrieve Specific Properties Only

Get-MgUserAppRoleAssignment -UserId "alex.johnson@domain.com" -Property "AppRoleId", "ResourceDisplayName"



This command reduces the response payload by retrieving only the essential fields.

4. Export App Role Assignments to CSV

Get-MgUserAppRoleAssignment -UserId "alex.johnson@domain.com" |
Select-Object AppRoleId, ResourceDisplayName, PrincipalId |
Export-Csv -Path "UserAppRoleAssignments.csv" -NoTypeInformation

Useful for audit or reporting purposes.

Cmdlet Tips

• Use the -All switch if your environment contains a large number of assignments and you want to bypass paging.
• Use Select-Object and Export-Csv for cleaner reporting or dashboards.
• Combine with Get-MgServicePrincipal to look up details of assigned apps using ResourceId.

Use Cases

• 🔐 Audit User Access: Ensure users have only the necessary permissions assigned to them.
• 👮 Security Reviews: Identify apps and roles a user has access to, especially during offboarding.
• 📊 Reporting & Compliance Export role assignments for periodic reviews or compliance reports.
• 🛠️ Debugging Access Issues: If a user cannot access an application, checking app role assignments can help identify misconfigurations.

Possible Errors & Solutions

Error	Cause	Solution
AccessDenied or Insufficient privileges	The signed-in user doesn’t have permission to call this API.	Ensure the signed-in account has the required Directory.Read.All or User.Read.All delegated or application permissions
User not found	The -UserId value provided is incorrect or does not exist.	Verify the user ID (can be UPN or GUID). Try: Get-MgUser -UserId "samadmin@domain.com"
Invalid filter clause	The -Filter syntax is incorrect	Refer to the OData filter query format and validate property names before use.

Conclusion

The Get-MgUserAppRoleAssignment cmdlet is essential for gaining insights into what applications and roles a user has been assigned in your Microsoft 365 tenant. Whether you're auditing, troubleshooting, or just curious, this cmdlet provides a reliable way to uncover role-based access across apps. Use it in combination with CSV export and service principal queries to build a complete access matrix for your environment.