I need help writing a formula for the following scenario:
I have 2 Checkbox fields on a custom Object: Approved_by_Manager__c and Bc_sent__c.
The test: if Approved_by_Manager__c is checked then Bc_sent__c is checkable else if Approved_by_Manager__c is not checked, then BC_Sent__c is not checkable, i.e., read only.
so I would like to insert a formula on validation rules on BC_sent__c:
IF( Approved_by_Manager__c = TRUE ,able, disable)