How to sell a treatment/package
Like any sale, you will have to go to the Till.
Create a new transaction to sell the treatment/package:
Select your customer, then select the treatment you want to sell to your customer and select the form of payment.
Note: if part of the cure is not paid right away by the customer, remember to indicate that the remaining amount is paid in "unpaid", it is very important.
Then you just have to click on Checkout.
If you need more precision, do not hesitate to consult this video: