Scheduling and managing events using Outlook.com calendar
Hi Gen from San Diego,
Welcome to the Microsoft Community Forum.
Thank you for posting your concern here. I understand that you are having issue on synchronizing your contacts. For that concern, changes on your contacts using your mobile devices should automatically sync with your contacts on your Outlook.com desktop application using ActiveSync. If you are having synchronizing your contacts using mobile device with Outlook.com desktop application, you may refer to this forum or create new post on this issue:
Hope this helps. Let us know if you have other concern.
Regards,
Ralph