I would need help to create a date and total calculation in an order form, I am really new in this field, I would appreciate any help, thanks
Basically, we are a small event organisation, we offer some products to our clients, the order form works brilliantly as it's but because we receive often orders very late,we would like to add a script to do the following:
1- There is a field called "event start date " in DD/MM/YYYY format, so If the order has been filled in within 20 days prior to the event start date (event start date <= 20), then 20% surcharge will be added to the total (there is a field called "surcharge" before the total and will be added to the total charges) , if the event start date > 20 days then the form should work as it is
2- In case that the difference is <=20 then a notification should appear to notify the client that 20% surcharge will be added to the total due to the late order.
3- If possible, we don't prefer to add a field called " today's date" (we need only "event start date" ), so the script should compare the actual date with the event start date without entering the actual date.
4 - To stop the script from running , in case we receive and open the form within the 20 days (in case clients send it before the 20 days deadline), is it possible to lock the form after the client saved it , so the form doesn't pick up today's date and recalculate the total if we open it later within the 20 days before the event.