The most likely reason for a delivery split in a collective delivery run is that the sales order line items have the same route and shipping point, but different ship-to parties. When items in a delivery originate from the same sales order but are intended for different delivery locations, the system recognizes this as a distinct scenario requiring a separate handling process.
In situations where items are meant for different ship-to parties, even if they share other commonalities like route or shipping point, the system will create a split to maintain the integrity of the delivery and ensure that the correct items reach their designated recipients. This is essential for both logistical efficiency and customer service, as it allows for clearer tracking and management of shipments.
Other factors related to weight capacity and loading groups can contribute to delivery management, but they do not directly imply a necessity for a delivery split in the context of collective delivery.