A check mark in this field indicates that warehouse document lines require serial number.
Similar to item tracking numbers on transfer orders, there is only one check mark. This is because numbers assigned when the item is inbound must remain unchanged when it is outbound.
If the field contains a check mark, assigned serial numbers will be carried to the associated warehouse entries as soon as the warehouse receipt line is posted. Hereafter, these particular serial numbers must be defined for every warehouse activity with the item (put-away, movement, pick).
If there is no checkmark, the serial numbers are not carried to warehouse entries, and serial numbers cannot be assigned to any warehouse activity lines handling the item.
If serial numbers exist for a source document, for example, a purchase order, and this field is not checkmarked, then the item ledger entries will still be split by serial number. However, the associated warehouse entries will not be split, as they do not contain serial numbers.