SAP Message VL483 - Multiple delivery is not possible for the same item in a delivery

Diagnosis
When placing a delivery for a sales order, the system recognized thatone or more order items should be delivered multiple times in the samecollective processing. For bills of material, delivery groups, materialdetermination, or free goods, multiple delivery (in particular withinthe same delivery) can mean that main or subitems are deliveredincorrectly, that the system does not recognize incomplete deliverygroups and does not reject them, or that the quantity relationshipsbetween the main and subitems cannot be determined correctly.

System Response
For delivery groups, bills of material, or other structured materials(order items with a main-subitem relationship), the system does notallow multiple delivery in one delivery. The items which wouldconstitute a multiple delivery are not processed. For each order item,the system only delivers the first selected entry in the shipping duedate index (transaction VL10).