To turn on billing and shipping addresses in BUSY, you need to follow the below steps:
Step 1: Go to Administration, then select Configuration, then select Voucher Series Configuration.
Step 2: then select a voucher such as sale, purchase, etc., then click on the voucher to find the series. Select the series in which you want to enable,
Step 3: Then click on voucher configuration, and you will find the option of separate billing and shipping details.
Step 4: Save to configuration by pressing F2 or the save tab.