Create a new person partition following these steps.
Admin Permissions Required
Understand first with Understanding Workspaces and Person Partitions.
Person Partitions can be complex. Please contact Marketo Support for help setting them up.
Go to the Person Partitions tab and click New Person Partition.
Name your partition, choose the Workspace(s) where it will appear, and click Create.
After creating the partition, you should see the update.
There you have it! You now know how to create a Person Partition.