Update the narrative and diagram in the asynchronous flow section 5.6 as follows: Change Step 5 from: The destination responds with an HTTP status code of  202 Accepted , and an HTTP header containing a  Content-Location  parameter that specifies the URL at which the response data will be available      to The destination processes the request and returns  the location to poll for status  to the intermediary. The destination responds with an HTTP status code of  202 Accepted , and an HTTP header containing a  Content-Location  parameter that specifies the URL at which  status of the request  will be available   Add a step following Step 5: The originator polls for status until the server responds with a "completed" HTTP status code 200 and body containing one or more URLs at which to retrieve the response data   Change Step 6 from: The originator later retrieves the response data using the address previously returned in the  Content-Location  parameter of the initial response from the destination      to The originator  later  retrieves the response data using the  URL(s)   previously  returned in the  completed status response   Content-Location  parameter of the initial response  from the destination   Update the diagram to include the added polling step