Whether_opp_follow_up__c false IF( OR(NOT(ISBLANK(Related_Opportunity1_ID__c)), NOT(ISBLANK(Related_Opportunity2_ID__c)), NOT(ISBLANK(Related_Opportunity3_ID__c)), NOT(ISBLANK(Related_Opportunity4_ID__c)), NOT(ISBLANK(Related_Opportunity5_ID__c))), 1,0) BlankAsZero 18 false 0 false false Number false