This post is dedicated to the four hours of my life I lost trying to figure out why my mandatory header texts were misbehaving. A client had requested that a header text be mandatory for all Credit Memo (CR) and Debit Memo (DR) documents. Makes sense. Standard SAP only prescribes an order reason be maintained, but sometimes you want to capture more details behind the rationale for such transactions. “Easy breezy,” I thought. Wrong. Read on to master SAP Mandatory Sales Text.