One customer's credit memo can be applied to another customer's Sales order by manually entering the SO Nbr.
Date: 31/08/2026
Status: Under Investigation
Reference: ADV-81653
Issue
A credit memo for customer A can be applied to customer B's Sales Order without validation when this SO is entered manually in Sales Order tab on Payments and Applications screen
Workaround
Use the lookup magnifying-glass icon in the Order Nbr. field instead of manually entering or pasting the order number.