If you work with direct delivery, the packing slip is always posted automatically on the intercompany purchase order and on the original sales order when you post the packing slip on the intercompany sales order. The intercompany purchase order invoice is based on the intercompany purchase order packing slip that was previously posted.
If you make any updates to the packing slip on the intercompany sales order, these are automatically reflected on the intercompany purchase order and the original sales order.
If you do not work with direct delivery, you must manually post the packing slip on the intercompany sales order, on the intercompany purchase order, and on the original sales order.