In a Sales Order, Business Central currently allows users to post the shipment with a later posting date and subsequently post the invoice with an earlier posting date. For example, the shipment can be posted using today's date, while the invoice is posted with a prior date.

This behavior can create accounting inconsistencies, as inventory transactions may be posted in a sequence that causes the Inventory Valuation to no longer reconcile with the General Ledger (G/L).

There is no valid business or accounting rationale for posting an invoice with a date earlier than the related shipment. Therefore, Business Central should validate the posting dates and prevent the invoice posting date from being earlier than the shipment posting date.