There are a number of reasons that may explain this behaviour listed below: The Customer is not a valid Account Customer - an Account customer is required to have both Credit Terms AND a Credit Limit. For more information, please see: Setting up an Account Customer The Sale does not contain any Fulfilled products - only products that have been Fulfilled (i.e. supplied or delivered or given to the customer) will show on Statements and within the Customer Account Payments area.The Sale is not in an Awaiting Payment or Processed state - the sale status may be Incomplete, Quote or Cancelled