Field Service - Contract Billing Reversal credit memo is not created

In Field Service, when reversing a billing using the Service Utilities>>Contract Billing Reversal menu option, a credit memo is not created in Sales Order Processing until a new Billing is created using the Contract Administration>>Contract Billing menu option.  If the reason for the reversal is to cancel the contract, you should cancel the line item as of the first day of the period which will create a SOP return.