S
Sri Harsha
Guest
Hi MeryK, I am assuming you are trying to disable it because even though no value is selected in main lookup, the link lookup selector is allowing values to be selected right ? This is a bug till 4.0.3. This has been fixed in 4.0.4. For example, I have a customer and contact fields set up as main and link lookup. And i have cust1, cust2 and cust3 records attached to cont1, cont2 and cont3 records respectively. In this case, when no value is given for customer, the contact object does not show up any records for selection. (image below). However, if i select cust1 value for customer field, the same selecotor page shows cont1 record for selection. Are you trying to achieve the same ? If yes, then this is availbale for you in 4.0.4 out-of-box. 
Regards, Harsha.
Continue reading...
Regards, Harsha.Continue reading...