It is a little bit complicated. I try to explain:

I have created a price field select list with 2 options:
field name: throttle

option 1: no throttle 0.00 USD amount: 1
option 2: yes throttle 0.00 USD amount: 1

As i don't offer a throttle for the specific instance I want to deactivate this price select field.
So i put the following values in it:

option 1: no throttle 0.00 USD amount: 0
option 2: yes throttle 0.00 USD amount: 0

Now one cannot select any option in the front end of the show instance layout for this price field. This is great! See image



But when I want to make a reservaion I get an error:

"integer failure in table os_cck_orders_price"

I understand that the price field with amount 0 cannot be saved in that table because 0 doesn't apply to the integer rules.

My question now?
Is there any other possibility to deactivate or not show this price field select list if the feature is not available for that specific instance?

Hello. Fixed.