This option allows users to enter tags to mark a given customer (for priority, for example). The tags you enter from this option can be used to filter orders in the Confirm POs screen of the Grower Portal and will be taken into account for the Mass Allocations, Confirm Shipments, and Export to Excel actions.
Go to Setup > Customers.
Click on the Search button to find the customer that you are going to set up the setting for.
Under the Actions column click on "Edit".
The Customer Information will pop-up, on the Setup tab click on the "Advanced" link.
In "Tags" enter the tags that will identify the customer.
Click on Save.