Question: What is the purpose of including the "N32-f message ID" in the JSON object containing metadata added by the sending SEPP?
Option 1: To identify the authorized IPX that can update the message.
Option 2: To provide a unique identifier for the N32-f context information used for protecting the message.
Option 3: To specify the HTTP Request/Response transaction between two SEPPs, but only for the receiving SEPP's response.
Option 4: To uniquely identify a HTTP Request/Response transaction between two SEPPs and ensure the same ID is used in both the request and response.
Explanation: The N32-f message ID is included in the metadata portion of the JSON structure to uniquely identify a HTTP Request/Response transaction between two SEPPs. This ensures that the receiving SEPP uses the same ID when responding back with a HTTP Response, allowing for proper correlation and processing of the request-response pair.