The user defined price field. If I enter for example 12.50 euro and go on to the next input field it transfers into 1.250 euro. So if people don’t watch out they will pay 1.250 euros instead of 12,50 euros.
I understand your solution, but that is not what I want to achieve. Because people still need to be able to enter 12,50 to pay 12,50. The problem is, if somebody accidentally uses a dot instead of a comma then they will not pay 12,50 but 1.250.
Gravity Forms just doesn’t support using both formats at the same time. You could add an example amount in the field description showing the format they should use when entering their value.