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Manage custom security attributes for an application

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Custom security attributes in Microsoft Entra ID are business-specific attributes (key-value pairs) that you can define and assign to Microsoft Entra objects. For example, you can assign custom security attribute to filter your applications or to help determine who gets access. This article describes how to assign, update, list, or remove custom security attributes for Microsoft Entra enterprise applications.

Prerequisites

To assign or remove custom security attributes for an application in your Microsoft Entra tenant, you need:

Important

By default, Global Administrator and other administrator roles do not have permissions to read, define, or assign custom security attributes.

Assign, update, list, or remove custom attributes for an application

Learn how to work with custom attributes for applications in Microsoft Entra ID.

Assign custom security attributes to an application

Tip

Steps in this article might vary slightly based on the portal you start from.

Undertake the following steps to assign custom security attributes through the Microsoft Entra admin center.

  1. Sign in to the Microsoft Entra admin center as an Attribute Assignment Administrator.

  2. Browse to Identity > Applications > Enterprise applications.

  3. Find and select the application you want to add a custom security attribute to.

  4. In the Manage section, select Custom security attributes.

  5. Select Add assignment.

  6. In Attribute set, select an attribute set from the list.

  7. In Attribute name, select a custom security attribute from the list.

  8. Depending on the properties of the selected custom security attribute, you can enter a single value, select a value from a predefined list, or add multiple values.

    • For freeform, single-valued custom security attributes, enter a value in the Assigned values box.
    • For predefined custom security attribute values, select a value from the Assigned values list.
    • For multi-valued custom security attributes, select Add values to open the Attribute values pane and add your values. When finished adding values, select Done.

    Screenshot shows how to assign a custom security attribute to an application.

  9. When finished, select Save to assign the custom security attributes to the application.

Update custom security attribute assignment values for an application

  1. Sign in to the Microsoft Entra admin center as an Attribute Assignment Administrator.

  2. Browse to Identity > Applications > Enterprise applications.

  3. Find and select the application that has a custom security attribute assignment value you want to update.

  4. In the Manage section, select Custom security attributes.

  5. Find the custom security attribute assignment value you want to update.

    Once you've assigned a custom security attribute to an application, you can only change the value of the custom security attribute. You can't change other properties of the custom security attribute, such as attribute set or custom security attribute name.

  6. Depending on the properties of the selected custom security attribute, you can update a single value, select a value from a predefined list, or update multiple values.

  7. When finished, select Save.

Filter applications based on custom security attributes

You can filter the list of custom security attributes assigned to applications on the All applications page.

  1. Sign in to the Microsoft Entra admin center as at least an Attribute Assignment Reader.

  2. Browse to Identity > Applications > Enterprise applications.

  3. Select Add filters to open the Pick a field pane.

    If you don't see Add filters, select the banner to enable the Enterprise applications search preview.

  4. For Filters, select Custom security attribute.

  5. Select your attribute set and attribute name.

  6. For Operator, you can select equals (==), not equals (!=), or starts with.

  7. For Value, enter or select a value.

  8. To apply the filter, select Apply.

Remove custom security attribute assignments from applications

  1. Sign in to the Microsoft Entra admin center as a Attribute Assignment Administrator.

  2. Browse to Identity > Applications > Enterprise applications.

  3. Find and select the application that has the custom security attribute assignments you want to remove.

  4. In the Manage section, select Custom security attributes (preview).

  5. Add check marks next to all the custom security attribute assignments you want to remove.

  6. Select Remove assignment.

Azure AD PowerShell

To manage custom security attribute assignments for applications in your Microsoft Entra organization, you can use PowerShell. The following commands can be used to manage assignments.

Assign a custom security attribute with a multi-string value to an application (service principal) using Azure AD PowerShell

Use the Set-AzureADMSServicePrincipal command to assign a custom security attribute with a multi-string value to an application (service principal).

  • Attribute set: Engineering
  • Attribute: Project
  • Attribute data type: Collection of Strings
  • Attribute value: ("Baker","Cascade")
$attributes = @{
    Engineering = @{
        "@odata.type" = "#Microsoft.DirectoryServices.CustomSecurityAttributeValue"
        "[email protected]" = "#Collection(String)"
        Project = @("Baker","Cascade")
    }
}
Set-AzureADMSServicePrincipal -Id aaaaaaaa-bbbb-cccc-1111-222222222222 -CustomSecurityAttributes $attributes

Update a custom security attribute with a multi-string value for an application (service principal) using Azure AD PowerShell

Provide the new set of attribute values that you would like to reflect on the application. In this example, we're adding one more value for project attribute.

  • Attribute set: Engineering
  • Attribute: Project
  • Attribute data type: Collection of Strings
  • Attribute value: ("Alpine","Baker")
$attributesUpdate = @{
    Engineering = @{
        "@odata.type" = "#Microsoft.DirectoryServices.CustomSecurityAttributeValue"
        "[email protected]" = "#Collection(String)"
        Project = @("Alpine","Baker")
    }
}
Set-AzureADMSServicePrincipal -Id aaaaaaaa-bbbb-cccc-1111-222222222222 -CustomSecurityAttributes $attributesUpdate

Get the custom security attribute assignments for an application (service principal) using Azure AD PowerShell

Use the Get-AzureADMSServicePrincipal command to get the custom security attribute assignments for an application (service principal).

Get-AzureADMSServicePrincipal -Select CustomSecurityAttributes
Get-AzureADMSServicePrincipal -Id aaaaaaaa-bbbb-cccc-1111-222222222222  -Select "CustomSecurityAttributes, Id"

Microsoft Graph PowerShell

To manage custom security attribute assignments for applications in your Microsoft Entra organization, you can use Microsoft Graph PowerShell. The following commands can be used to manage assignments.

Assign a custom security attribute with a multi-string value to an application (service principal) using Microsoft Graph PowerShell

Use the Update-MgServicePrincipal command to assign a custom security attribute with a multi-string value to an application (service principal).

Given the values

  • Attribute set: Engineering
  • Attribute: ProjectDate
  • Attribute data type: String
  • Attribute value: "2024-11-15"
#Retrieve the servicePrincipal

$ServicePrincipal = (Get-MgServicePrincipal -Filter "displayName eq 'TestApp'").Id

$customSecurityAttributes = @{
    Engineering = @{
        "@odata.type" = "#Microsoft.DirectoryServices.CustomSecurityAttributeValue"
        "ProjectDate" ="2024-11-15"
    }
}
Update-MgServicePrincipal -ServicePrincipalId $ServicePrincipal -CustomSecurityAttributes $customSecurityAttributes

Update a custom security attribute with a multi-string value for an application (service principal) using Microsoft Graph PowerShell

Provide the new set of attribute values that you would like to reflect on the application. In this example, we're adding one more value for project attribute.

Given the values

  • Attribute set: Engineering
  • Attribute: Project
  • Attribute data type: Collection of Strings
  • Attribute value: ["Baker","Cascade"]
$customSecurityAttributes = @{
    Engineering = @{
        "@odata.type" = "#Microsoft.DirectoryServices.CustomSecurityAttributeValue"
        "[email protected]" = "#Collection(String)"
        "Project" = @(
            "Baker"
            "Cascade"
        )
    }
}
Update-MgServicePrincipal -ServicePrincipalId $ServicePrincipal -CustomSecurityAttributes $customSecurityAttributes

Filter applications based on custom security attributes using Microsoft Graph PowerShell

This example filters a list of applications with a custom security attribute assignment that equals the specified value.

$appAttributes = Get-MgServicePrincipal -CountVariable CountVar -Property "id,displayName,customSecurityAttributes" -Filter "customSecurityAttributes/Engineering/Project eq 'Baker'" -ConsistencyLevel eventual
$appAttributes | select Id,DisplayName,CustomSecurityAttributes  | Format-List
$appAttributes.CustomSecurityAttributes.AdditionalProperties | Format-List

Id                       : aaaaaaaa-bbbb-cccc-1111-222222222222
DisplayName              : TestApp
CustomSecurityAttributes : Microsoft.Graph.PowerShell.Models.MicrosoftGraphCustomSecurityAttributeValue

Key   : Engineering
Value : {[@odata.type, #microsoft.graph.customSecurityAttributeValue], [ProjectDate, 2024-11-15], [[email protected], #Collection(String)], [Project, System.Object[]]}

Remove custom security attribute assignments from applications using Microsoft Graph PowerShell

In this example, we remove a custom security attribute assignment that supports single values.


$params = @{
    "customSecurityAttributes" = @{
        "Engineering" = @{
            "@odata.type" = "#Microsoft.DirectoryServices.CustomSecurityAttributeValue"
            "ProjectDate" = $null
        }
    }
}
Invoke-MgGraphRequest -Method PATCH -Uri "https://graph.microsoft.com/v1.0/servicePrincipals/$ServicePrincipal" -Body $params

In this example, we remove a custom security attribute assignment that supports multiple values.

$customSecurityAttributes = @{
    Engineering = @{
        "@odata.type" = "#Microsoft.DirectoryServices.CustomSecurityAttributeValue"
        "Project" = @()
    }
}
Update-MgServicePrincipal -ServicePrincipalId $ServicePrincipal -CustomSecurityAttributes $customSecurityAttributes

Microsoft Graph API

To manage custom security attribute assignments for applications in your Microsoft Entra organization, you can use the Microsoft Graph API. Make the following API calls to manage assignments.

For other similar Microsoft Graph API examples for users, see Assign, update, list, or remove custom security attributes for a user and Examples: Assign, update, list, or remove custom security attribute assignments using the Microsoft Graph API.

Assign a custom security attribute with a multi-string value to an application (service principal) using Microsoft Graph API

Use the Update servicePrincipal API to assign a custom security attribute with a string value to an application.

Given the values

  • Attribute set: Engineering
  • Attribute: Project
  • Attribute data type: String
  • Attribute value: "Baker"
PATCH https://graph.microsoft.com/v1.0/servicePrincipals/{id}
Content-type: application/json

{
    "customSecurityAttributes":
    {
        "Engineering":
        {
            "@odata.type":"#Microsoft.DirectoryServices.CustomSecurityAttributeValue",
            "[email protected]":"#Collection(String)",
            "Project": "Baker"
        }
    }
}

Update a custom security attribute with a multi-string value for an application (service principal) using Microsoft Graph API

Provide the new set of attribute values that you would like to reflect on the application. In this example, we're adding one more value for project attribute.

PATCH https://graph.microsoft.com/v1.0/servicePrincipals/{id}
Content-type: application/json

{
    "customSecurityAttributes":
    {
        "Engineering":
        {
            "@odata.type":"#Microsoft.DirectoryServices.CustomSecurityAttributeValue",
            "[email protected]":"#Collection(String)",
            "Project":["Baker","Cascade"]
        }
    }
}

Filter applications based on custom security attributes using Microsoft Graph API

This example filters a list of applications with a custom security attribute assignment that equals the specified value. The filter value is case sensitive. You must add ConsistencyLevel=eventual in the request or the header. You must also include $count=true to ensure the request is routed correctly.

GET https://graph.microsoft.com/v1.0/servicePrincipals?$count=true&$select=id,displayName,customSecurityAttributes&$filter=customSecurityAttributes/Engineering/Project eq 'Baker'
ConsistencyLevel: eventual

Remove custom security attribute assignments from an application using Microsoft Graph API

In this example, we remove a custom security attribute assignment that supports multiple values.

PATCH https://graph.microsoft.com/v1.0/servicePrincipals/{id}
Content-type: application/json

{
    "customSecurityAttributes":
    {
        "Engineering":
        {
            "@odata.type":"#Microsoft.DirectoryServices.CustomSecurityAttributeValue",
            "Project":[]
        }
    }
}

Next steps