The settings in Shipping tab determine if the system should automatically select the shipping agent and shipping agent service based on the characteristics of the order and whether shipping charges should be included on the order.
The Select Shipping Agent/Service on Release option determines if the Shipping Agent and Shipping Agent Service fields should be automatically determined on the release of a sales document based on the characteristics of the order such as weight, value and destination.
Enabling Calculate Shipping Charges will calculate any shipping charges and add a new line to the sales document. In order for these lines to be processed as part of the warehouse process new options should also be enabled on the Warehouse Setup page.
Note: In order to use this either of these options the Shipping Agent Usage and Charges page should be populated with the rules for shipping agent selection.