Enter a Sales Order > Merchandise tab > Delivery Date field > click Action button and choose Select a Delivery Date
Use this routine to schedule the line item for a date that already exists on the order. When you use this window to select a date, you must choose from the drop-down list of all delivery dates existing on the order.
Click the Arrow button to select a date from the drop-down list. The list includes all delivery dates currently on this order. Once you select a date, click the OK button to update the Delivery Date on the Merchandise tab of the order entry screen.
Delivery Date