A method and apparatus are herein disclosed for allowing suppliers to generate an invoice from a purchase order without requiring them to log in or pre-register with a networked application. Implementation is provided by having a first user provide a first document to a networked application. An electronic notification is dispatched to a receiver for the first document with a unique link to a data entry page within the networked application. The data entry page is sandboxed with limited functionality within the networked application, but accepts data from the receiver to be sent directly into the first user's system.