I am trying to create a PDF for a Work Order. For our Billing account there are 2 possibilities the default billing account or the override billing account. If you want to use the override billing account you have to check the checkbox. I want the PDF to pull the correct one so I was trying to write an IF statement that pulled one account if the box was checked (TRUE) and another if it was not (FALSE). Below is what I cam up with{!IF(!workOrderForm.Override_Bill_to__c = TRUE, !workOrderForm.Bill_To_Account__r.Name, !workOrderForm.Bill_To_Account_Lookup__r.Name)} Note: WorkOrderForm is a variable called out in the controller that represents our work order number But I keep getting this error message Error: Incorrect parameter type for function 'not()'. Expected Boolean, received Text Any ideas?