Link contacts to your tasks
You can link an Outlook contact to a task by dragging from your Contacts folder on to the task. The app does not make a copy of the contact; it just links to the contact in your Outlook contacts folder. Linked contacts are listed in the Contacts tab below the list. You can open a contact by double-clicking on it or by right-clicking on it and selecting "Open contact."
You can delete the link to the contact by right-clicking on it and selecting "Delete contact." This will delete the link to the contact, but it won't delete the contact in your Contacts folder.