I am trying to create new Validation rule in "Call" object with field Attachment_placed_on_the_call__c as checkbox for the following requirement:
If Interaction Type is "Reactive" we need to have a validation Rule that if user has not selected "Attachment placed on the call" the call cannot be Submitted. (Call can be saved)
Please find the attached image for created Validation Rule and receiving the syntax error. So,can somebody please help me in modifying this VR.