This screen displays the deliveries and returns for the selected supplier and stock location. Initially the screen looks as follows:

The top part of the screen is a standard select screen.  Enter the required Supplier and Stock Location. You can select one of the following statuses: All, Cancelled, In Progress or Posted.
 

After finding orders, and selecting an order and a line item the screen looks as follows:

For details on the fields in the header and the Items tab, see Edit Delivery.
For details on the fields in the Order tab, see Edit Order.

For a Posted delivery the buttons are as follows:
New - create a new delivery or return
Invoice - create the invoice for this delivery. The delivery status will be set to Posted.  Note that you will not be able to do any more changes to this delivery, and the system will not object if you have only had a part delivery (eg 3 items delivered out of 6 ordered) - because what you are doing is creating the invoice for the part delivery. Note that the invoice is normally created as the second step of the Finalise process - see below.
Reverse - create a return note to reverse the selected delivery - a confirm window will be displayed
Check Inbox - pressing this checks to see if there are any messages from the ESCI interface, and if so sets the red 'have messages' alert in the messages icon at the top left of the screen. If the alert comes on, then you can use Workflow|Messaging to examine the messages.

For an 'In Progress' delivery, the buttons are New and Check Inbox and also:
Edit - edit the delivery
Delete - delete the delivery/return - a confirm window will be displayed
Finalise - finalise the delivery/return indicating that it is ready for invoicing/crediting. A confirm window will be displayed - if you OK the finalisation, the status will be change to 'Finalised'. You will also be asked if you want to create a supplier invoice/credit note for the delivered/returned items.
 

If you edit the delivery, you can change the supplier information (ie the Reorder Code & Description, Package Size & Units, List and Nett prices), and when the delivery is finalised, these will be updated in the product's Supplier information for this supplier. You can also enter any batch information for the delivered products. You can also add items to the delivery - you will want to do this if you ordered product X but they delivered product Y, or if what was delivered consists of two or more batches (because one line item can only contain one set of batch information).