Best method that prevents user from selecting...

[Tim_Meske]

Best method that prevents user from selecting ‘yes’ to two fields in a form.

If user wants to select ‘yes’ in one of the fields then the other must be ‘no’.

Or both must be ‘no’.

Not having success with if OR/AND formula in Type Qualifier ‘Valid_If’.

Also, I am not using virtual columns for this, maybe this is required too?

Thanks!