Chained-select - Require problem for not complete csv line


I have a selection string from a csv file.

I have 3 columns . On some lines, I have only one value on the 3 columns. Example : Other.

The field must be necessary but if I choose “Other” for example, I have an alert message “This field is necessary. Please select a value for each option”.

Do you have a solution ? or maybe I missed a function to solve it.

Thank you

PS: sorry for my english, i’m french :slight_smile: