SN53B conversion to Sage 300 2014

 Recently converted a Customer with Serialized inventory (53B) to Sage 300 2014. In order entry, the serial numbers are showing up in the shipment line item, but not the invoice line item. Therefore when we try to do a credit note against an invoice the system will not allow it. Is this the way the conversion is supposed to work? Dos anyone have a workaround or a fix?