First_Proposal_Days__c false IF( ISBLANK( GIR_Solution_Acceptanc__c ) , 0, IF( ISBLANK( First_Proposal_Time__c ) , NOW() - GIR_Solution_Acceptanc__c , First_Proposal_Time__c - GIR_Solution_Acceptanc__c ) ) BlankAsZero 18 false 0 false false Number false