| APPLICATION_ERROR | TOKEN_SERVICE_ERROR | Could not obtain session token detail |
| APPLICATION_ERROR | TOKEN_DETAILS_SERVICE_ERROR | Could not obtain session token detail |
| APPLICATION_ERROR | CONTEXT_CHANGE_SERVICE_ERROR | An error occurred while invoking an internal service |
| APPLICATION_ERROR | DOWNLINE_SERVICE_ERROR | [Errors retrieved from downline service] |
| APPLICATION_ERROR | RESERVATION_SERVICE_ERROR | An error occurred while invoking an internal service |
| APPLICATION_ERROR | DOWNLINE_SERVICE_CONNECTION_TIMEOUT | An error occurred while invoking an internal service |
| BAD_REQUEST | INVALID_HEADER | Required header 'Authorization' is missing |
| BAD_REQUEST | INVALID_TOKEN | Required header 'Authorization' is missing |
| BUSINESS_ERROR | CONTEXT_CHANGE_FAILED | [Errors retrieved from downline service] |
| BUSINESS_ERROR | DUTY_CODE_CONTEXT_CHANGE_FAILED | The duty code is invalid or not assigned |
| BUSINESS_ERROR | RESERVATION_SERVICE_FAILED | [Errors retrieved from downline service] |
| BUSINESS_ERROR | BOOKING_NOT_FOUND | Booking not found for provided 'pnrLocator' |
| BUSINESS_ERROR | TICKETING_SERVICE_FAILED | [Errors retrieved from downline service] |
| BUSINESS_ERROR | TICKETING_DOCUMENTS_NOT_FOUND | Ticketing documents not found in the booking |
| BUSINESS_ERROR | DOWNLINE_BUSINESS_ERROR | [Errors retrieved from downline service] |