validation rule on multi select picklist at least one select

Question

I have a multi select picklist which has 6 items. Now I have to implement validation rule that "at least one picklist item selected" and this validation rule should be fired only when the status__c is 'Draft'

I'm not sure how to combine this two into one rule

I have attempted something like this:

IF( ISPICKVAL( status__c , 'Draft'), IF(INCLUDES(Multi_Picklist__c, "A"),1,0) + 
IF(INCLUDES( Multi_Picklist__c, "B"),1,0) + 
IF(INCLUDES( Multi_Picklist__c, "C"),1,0) + 
IF(INCLUDES( Multi_Picklist__c, "D"),1,0) + 
IF(INCLUDES( Multi_Picklist__c, "E"),1,0) => 1

Answer 1

Just check for the field being blank and Status being draft:

isblank('Multi_Picklist__c')&&IsPickVal(Status__c,'Draft')