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Quickstart: Grant permission to create unlimited app registrations

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In this quick start guide, you will create a custom role with permission to create an unlimited number of app registrations, and then assign that role to a user. The assigned user can then use the Azure portal, Azure AD PowerShell, or Microsoft Graph API to create application registrations. Unlike the built-in Application Developer role, this custom role grants the ability to create an unlimited number of application registrations. The Application Developer role grants the ability, but the total number of created objects is limited to 250 to prevent hitting the directory-wide object quota. The least privileged role required to create and assign Azure AD custom roles is the Privileged Role Administrator.

If you don't have an Azure subscription, create a free account before you begin.

Prerequisites

  • Azure AD Premium P1 or P2 license
  • Privileged Role Administrator or Global Administrator
  • AzureADPreview module when using PowerShell
  • Admin consent when using Graph explorer for Microsoft Graph API

For more information, see Prerequisites to use PowerShell or Graph Explorer.

Azure portal

Create a custom role

  1. Sign in to the Azure portal.

  2. Select Azure Active Directory > Roles and administrators and then select New custom role.

    Create or edit roles from the Roles and administrators page

  3. On the Basics tab, provide "Application Registration Creator" for the name of the role and "Can create an unlimited number of application registrations" for the role description, and then select Next.

    provide a name and description for a custom role on the Basics tab

  4. On the Permissions tab, enter "microsoft.directory/applications/create" in the search box, and then select the checkboxes next to the desired permissions, and then select Next.

    Select the permissions for a custom role on the Permissions tab

  5. On the Review + create tab, review the permissions and select Create.

Assign the role

  1. Sign in to the Azure portal.

  2. Select Azure Active Directory > Roles and administrators.

  3. Select the Application Registration Creator role and select Add assignment.

  4. Select the desired user and click Select to add the user to the role.

Done! In this quickstart, you successfully created a custom role with permission to create an unlimited number of app registrations, and then assign that role to a user.

Tip

To assign the role to an application using the Azure portal, enter the name of the application into the search box of the assignment page. Applications are not shown in the list by default, but are returned in search results.

App registration permissions

There are two permissions available for granting the ability to create application registrations, each with different behavior.

  • microsoft.directory/applications/createAsOwner: Assigning this permission results in the creator being added as the first owner of the created app registration, and the created app registration will count against the creator's 250 created objects quota.
  • microsoft.directory/applications/create: Assigning this permission results in the creator not being added as the first owner of the created app registration, and the created app registration will not count against the creator's 250 created objects quota. Use this permission carefully, because there is nothing preventing the assignee from creating app registrations until the directory-level quota is hit. If both permissions are assigned, this permission takes precedence.

PowerShell

Create a custom role

Create a new role using the following PowerShell script:


# Basic role information
$displayName = "Application Registration Creator"
$description = "Can create an unlimited number of application registrations."
$templateId = (New-Guid).Guid

# Set of permissions to grant
$allowedResourceAction =
@(
    "microsoft.directory/applications/create"
    "microsoft.directory/applications/createAsOwner"
)
$rolePermissions = @{'allowedResourceActions'= $allowedResourceAction}

# Create new custom admin role
$customRole = New-AzureAdMSRoleDefinition -RolePermissions $rolePermissions -DisplayName $displayName -Description $description -TemplateId $templateId -IsEnabled $true

Assign the role

Assign the role using the following PowerShell script:

# Get the user and role definition you want to link
$user = Get-AzureADUser -Filter "userPrincipalName eq 'Adam@contoso.com'"
$roleDefinition = Get-AzureADMSRoleDefinition -Filter "displayName eq 'Application Registration Creator'"

# Get resource scope for assignment
$resourceScope = '/'

# Create a scoped role assignment
$roleAssignment = New-AzureADMSRoleAssignment -ResourceScope $resourceScope -RoleDefinitionId $roleDefinition.Id -PrincipalId $user.objectId

Microsoft Graph API

Create a custom role

Use the Create unifiedRoleDefinition API to create a custom role.

POST https://graph.microsoft.com/v1.0/roleManagement/directory/roleDefinitions

Body

{
    "description": "Can create an unlimited number of application registrations.",
    "displayName": "Application Registration Creator",
    "isEnabled": true,
    "rolePermissions":
    [
        {
            "allowedResourceActions":
            [
                "microsoft.directory/applications/create"
                "microsoft.directory/applications/createAsOwner"
            ]
        }
    ],
    "templateId": "<PROVIDE NEW GUID HERE>",
    "version": "1"
}

Assign the role

Use the Create unifiedRoleAssignment API to assign the custom role. The role assignment combines a security principal ID (which can be a user or service principal), a role definition (role) ID, and an Azure AD resource scope.

POST https://graph.microsoft.com/v1.0/roleManagement/directory/roleAssignments

Body

{
    "@odata.type": "#microsoft.graph.unifiedRoleAssignment",
    "principalId": "<PROVIDE OBJECTID OF USER TO ASSIGN HERE>",
    "roleDefinitionId": "<PROVIDE OBJECTID OF ROLE DEFINITION HERE>",
    "directoryScopeId": "/"
}

Next steps