If you want to add a sales invoice in BUSY, you can follow these steps:
Step 1: Open BUSY and select the company you want to work with. Then, go to the Transactions tab and select Sales.
Step 2: After selecting voucher click on Add and fill all the required details such as Date, Voucher no., Items, Amount, etc and save the transaction.
You can find various reports under the Display menu in BUSY, such as financial report, accounting report, inventory report, and more. You can select the report option that suits your needs.