MT370: (6) Field 20C: Reference
FORMAT
| Option C | :4!c//16x | (Qualifier)(Reference) |
PRESENCE
Mandatory in optional subsequence A1
QUALIFIER
(Error code(s): T89)
Order |
M/O |
Qualifier |
R/N |
CR |
Options |
Qualifier Description |
|---|---|---|---|---|---|---|
1 |
M |
RELA |
N |
|
C |
Related Message Reference |
|
or |
PREV |
N |
C1 |
C |
Previous Message Reference |
DEFINITION
This qualified generic field specifies:
PREV |
Previous Message Reference |
Message reference of a previously sent Net Position Advice message. |
RELA |
Related Message Reference |
Message reference of a related message previously received. |
NETWORK VALIDATED RULES
Reference must not start or end with a slash '/' and must not contain two consecutive slashes '//'.
