Hello,
I am trying to do the following but have not found a solution yet.
I have 7 fields in my table. For example, if field 1 is filled, field 2 must not be filled. In the frontend, field 2 is hidden when field 1 is set. However, field 2 can be filled before field 1 and then it will be saved anyway. I think I have to validate with PHP. Is there a way to validate the fields depending on each other?
