Here’s a of Business Contact Manager (BCM) for Office 365 — noting first that Microsoft officially discontinued BCM as a standalone add-in for Outlook after the 2010/2013 versions. If you’re looking for a modern equivalent within Office 365, you’d use Microsoft Dynamics 365 Sales , Outlook People + Categories + OneNote , or a third-party tool like Insightly , Salesforce Essentials , or HubSpot CRM integrated with Outlook.