Microsoft Graph Contacts
Microsoft Graph Contacts is the part of Microsoft Graph that lets apps access and manage the contacts stored in Microsoft 365 (Outlook) mailboxes through a single REST API. It enables you to list, search, create, update, and delete contacts and contact folders for the signed-in user or other mailboxes you have permission to access, synchronize changes with delta queries, retrieve or update contact photos, and filter/sort results with OData queries.