GET https://graph.microsoft.com/v1.0/me/contactFolders/{id}/childFolders
// Code snippets are only available for the latest version. Current version is 5.x
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Me.ContactFolders["{contactFolder-id}"].ChildFolders.GetAsync();
// THE CLI IS IN PREVIEW. NON-PRODUCTION USE ONLY
mgc users contact-folders child-folders list --user-id {user-id} --contact-folder-id {contactFolder-id}
// Code snippets are only available for the latest version. Current version is 6.x
GraphServiceClient graphClient = new GraphServiceClient(requestAdapter);
ContactFolderCollectionResponse result = graphClient.me().contactFolders().byContactFolderId("{contactFolder-id}").childFolders().get();
Import-Module Microsoft.Graph.PersonalContacts
# A UPN can also be used as -UserId.
Get-MgUserContactFolderChildFolder -UserId $userId -ContactFolderId $contactFolderId