Add items to cart > click on the ‘Pay’ option.
If the customer is not having the change of extra amount e.g. bill amount is 710 and the customer is not having 10 change, then the customer gives 800 bill amount which you have to enter. After that Rs. 90 will show the balance is negative.
Click one enter option then If a customer says keep this amount as Advance for the next purchase then click on ‘Save to Diary’ option
A new window will appear with the ‘Advance Due’ option, click on the same.
Click on ‘BILL’ or ‘BILL & PRINT’.