[Form]Show error message with dropdown menu

Hello, i wanted to know how can i do to show an error message when someone answered to a dropdown question.

By exemple: the question is “Are you subscribed to my YT Channel” when someone answer “No” between “Yes or No” then then my website shows an error message (and dropdown menu turn red), i tried the filter ID options in the database but that didn’t change anything, when you answer Yes or No, there’s always the succes message.

Hello

you can do that by adding a text box with the error msg, then when the value of the drop down changes it gets it and based on that if it equals ‘No’ you show the text box and change the style of the dropdown menu, if ‘Yes’ you hide it.

check the dropdown documentation to see how u can get the value when changed and how to set the style: https://www.wix.com/code/reference/$w.Dropdown.html

Best
Massa