Error visibility in the manage shipment lines

Cannot invoice in Full for most of sales orders. In particular, the lack of visibility within Oracle for the Ship Confirm process, being total sales order lines, versus total available shippable lines. based on what has been receipted for Non B2B or Work Orders completed OR line statuses within OM that prevent a line from being able to be shipped, despite its availability in Finished Goods sub-inventory. 

Oracle Fusion Cloud Applications - 23C