If you are using DPD as a Shipping Agent, then they are able to incorporate Delivery Instructions within their Consignments. Default Delivery Instructions can be defined from either the "Customer" or "Ship-To Address" screens and will be automatically populated onto the "Sales Order" if defined.
In addition, Delivery Instructions can also just be added manually onto a "Sales Order".
Note: Delivery Instructions used on a Consignment and submitted to the "Shipping Agent" will be derived using the following hierarchy.
"Sales Order" added/amended manually for each Order
"Ship-To Address" automatically copied into the Delivery Instructions attribute on the Sales Order Header if defined
"Customer" Card automatically copied into the Delivery Instructions attribute on the Sales Order Header if defined
If Delivery Instructions have not been defined in any of the above areas, then it will be left blank on the Consignment.