Get-MgGroupMemberAsServicePrincipal – Retrieve Service Principals from a Group Using Graph PowerShell

Microsoft Graph PowerShell offers powerful ways to manage and query Microsoft Entra ID (Azure AD) objects. One such useful cmdlet is Get-MgGroupMemberAsServicePrincipal, which helps administrators retrieve service principals that are members of a group.

This is particularly useful when dealing with application-based access, automation identities, or service integrations tied to Microsoft 365 groups.

Cmdlet Syntax

Get-MgGroupMemberAsServicePrincipal [-GroupId <String>]

Usage Examples

Entering GroupID When Prompted by PS Console

Get-MgGroupMemberAsServicePrincipal

If -GroupId is not provided, PowerShell will prompt you to enter the Group ID manually.

Passing GroupID Parameter Directly

Get-MgGroupMemberAsServicePrincipal -GroupId efba43ca-ff99-4f70-b2c5-a97e9dbb75d2

Retrieves all service principals that are members of the specified group.

Selecting Only Specific Service Principal Properties

Get-MgGroupMemberAsServicePrincipal -GroupId efba43ca-ff99-4f70-b2c5-a97e9dbb75d2 | Select DisplayName,Id

Useful for reducing output clutter and focusing only on key identifiers.

Exporting Service Principal Group Members to CSV

Get-MgGroupMemberAsServicePrincipal | Export-CSV "D:/group_members_as_serviceprincipals.csv"

Exports all service principal members of a group to a CSV file for reporting or auditing.

Cmdlet Tips

1. Service Principals Only

This cmdlet returns only service principals, not users or groups—even if they are members.

2. Use with Automation Groups

Best suited for groups used in app registrations, automation, or API access control.

3. Combine with Filtering (Post-Processing)

Since native filtering is limited, use Where-Object:
... | Where-Object {$_.DisplayName -like "*App*"}

4. Export for Audits

Always export results when performing compliance or audit checks.

5. Permissions Matter

Ensure you have: Group.Read.All and Directory.Read.All

Admin Use Cases

1. Audit Application Access

Identify which applications (service principals) are part of privileged groups.

2. Security Reviews

Validate that only approved service principals are assigned to sensitive groups.

3. Automation Tracking

Track service accounts used in scripts, workflows, or integrations.

4. Compliance Reporting

Generate reports for governance and audit teams.

5. Migration & Cleanup

Detect unused or legacy service principals in groups.

Frequently Asked Questions

1. What is a Service Principal in this context?

A service principal represents an application or automation identity in Entra ID used for authentication and authorization.

2. Does this cmdlet return users or groups?

❌ No. ✔️ Only service principals are returned.

3. Can I filter results using -Filter?

❌ No native -Filter support. ✔️ Use Where-Object for filtering.

4. Is -GroupId mandatory?

⚠️ Not strictly mandatory, but: If omitted → PowerShell prompts you. Best practice → Always pass it explicitly

5. Can I export results directly?

Yes, using Export-CSV as shown in the examples

Possible Errors & Solutions

Error	Cause	Solution
Insufficient privileges to complete the operation	Missing required Graph API permissions.	Connect with appropriate scopes: Connect-MgGraph -Scopes "Group.Read.All","Directory.Read.All"
Resource not found	Invalid or incorrect GroupId.	Verify Group ID: Get-MgGroup | Select DisplayName,Id
No results returned	Group has no service principals Only users/groups are members	Verify group membership type using: Get-MgGroupMember -GroupId

Conclusion

The Get-MgGroupMemberAsServicePrincipal cmdlet is a specialized yet powerful tool for administrators who need visibility into application identities within Microsoft 365 groups.

Whether you're conducting security audits, managing automation accounts, or ensuring compliance, this cmdlet helps you isolate and analyze service principal memberships effectively.

👉 Pair it with export and filtering techniques to unlock its full potential for real-world administrative scenarios.