I need be able to add a tip after paying the total ticket amount. I found this:
Continuing the discussion from How to add tips to ticket:
Where Emre mentions this as an option:
Do not close ticket automatically after settling ticket. Instead create a specific button to close ticket and display table as empty.
I have tried to accomplish this by adding the following constraint to the "Mark ticket as closed" in the "Check ticket payment" rule (Event: Before closing tickets):
Is not Null
The ticket does not close if do not assign a Tip during payment which is what I want. The problem is that the Tip button is disabled when you go back to the Ticket to try and assign a tip.
It seems to me that all additional calculations are disabled once the ticket is been payed and there is no way to add the tip later, is this true?