The Serial Number List is used to enter the serial numbers being invoiced or credited back into inventory. The Serial List allows you to import the serial numbers of the items being processed from CSV files. When the Import Batch Button is pressed, the system prompts you to select a file. The file should be an ASCII file containing one serial number on each line (for the specific invoice line or credit memo line and item number being processed), with a carriage return at the end of each line. Once a valid file is selected, the system loads the serial numbers from the file into the grid section of the Serial List. As each serial number is imported into the program, the system validates the serial number. If an invoice transaction is being processed, the system checks the serial flag for the item. If the item is serialized on receipt, the serial number should be present in the system with an I status (in stock) in the location the item is being invoiced from. If the item is serialized on sale, it can be in stock (due to being sold and returned earlier), or it may not exist in the system as it has not been sold yet. If a credit memo transaction is processed, a status S (sold) serial record should exist for the item being returned.