Upgrade a single service to a course
After having a service, it is possible to sell a course and redeem the service just had from that course.
E.g. Client has a Hydrafacial and on check out decides to purchase a course of 3, taking today's treatment from the course.
Check out the single treatment as usual.
In the POS, click "COURSE" in the "Add invoice item" box.
Select the course that contains the service just had.
Ensure that the course you wish to redeem the service from is selected in the pop-up and click "Continue". The course will be added to the invoice and the single service will show as "Redeemed".
Take payment for the course as usual.