How do I disable either of the 2 sublist fields based on the certain criteria? Record.getCurrentSublistField(options) is not valid for fieldChanged and postSourcing events. This is 2.1 CS. Is the other option to use validate line to see if the values is correct?

I knew there was something. Thanks! But for this, I will need to enable/disable the field for each line, right?

that was always going to be the case

Thanks @battk