When used with a Microsoft Exchange account, tasks can be shared between people. Task sharing is not limited to just the default Tasks folder that is created in all Outlook profiles. You can create additional task folders and choose which of those folders to share. For example, you can create a task folder for a specific project. You can then share access to the task folder with your co-workers so that they can review the task list.
For the most current instructions on sharing your Task folder/s, please check out the following Microsoft help article: https://support.office.com/en-us/article/Share-task-folders-with-others-2627F41D-84EE-4B7D-ADF0-4D3EDEFAC110.
1. Click Tasks in the Navigation Pane in the bottom left of Outlook.
2. The default folder is usually under My Tasks, displayed as Tasks. If you have multiple folders, make sure you select the default Tasks folder.
3. Click Folder >Share Tasks.
4. In the To box, enter the name of the recipient for the sharing invitation message.
5. Make sure the check box next to "Allow recipient to view your tasks folder" is selected.
6. Optionally, you can change the Subject.
7. Optionally, you can request permissions to view the recipient's default Tasks folder. To do so, select the "Request permission to view the recipient's Tasks folder" check box. Note: If you want to request access to a tasks folder other than the default Tasks folder, you must manually send an e-mail message asking for permission to access that particular folder.
8. In the message body, type any information that you want to include.
9. Click Send.
10. Review the confirmation dialog box, and then, if correct, click OK.