Go to item fulfillment page by
Go to Transactions > Sales > Fulfill orders or Sales order > Fulfill
Click the Shipping subtab to verify the following:
■ Shipping and address information is correct
■ The Integrated Shipping Label box is checked

In the Carrier Subtab select the appropriate data and verify the details:

In the Packages Subtab select the appropriate data and verify the details:

Click Save.
Shipping Cost and handling costs will be automatically calculated & updated in the Fulfillment record.