Save Payment Change as Credit
When receiving payment from customer, and there is change due to the customer, operator can click on the yellow button to save the change as credit.
This button will only appear if the bill is associated with a profile (not anonymous).
Next, click on the green Save As Credit, to confirm the action.
On the receipt, the payment transactions are recorded with 1 extra transaction to Credits.
Payment using the Credit
The credit can then be used to pay againts another invoice of the same customer.
Selling Items Shelf Label
A label can be printed, to be pasted on selling item shelves, to label the items.