I have the following form: https://jmp.sh/HTOpAwy But branding, webdesign, content and marketing are multicheckbox in the tpl. But i want at least one those values is checked.

Any ideas how to do this?

I used required_without:content,marketing,webdesign on the branding field, but it does not seem to do what i want

Answered by Frederik Heyninck! Go to answer.