The Fees tab shows all Fees relevant to the Customer.

Add New Fee
To add new fees, use the drop-down menu to select the Service Fee Type. New Service Fee Types can be created and managed in Lookups > Service Fee Types.

Select the name from the drop-down menu.

Once these are selected the Amount will automatically fill out, make sure this is correct otherwise edit if needed.

Once complete use the Save button to save the fee or use Close to back out of the creation.

Delete
To delete a Fee use the red trash-can on the relevant fee.
