MTN90: (2) Field 21: Related Reference
FORMAT
| 16x |
PRESENCE
Mandatory
DEFINITION
This field contains the reference of the transaction to which the charge(s), interest or other adjustment(s) in this message apply, for example, field 20 Transaction Reference Number of the related SWIFT message.
NETWORK VALIDATED RULES
This field must not start or end with a slash '/' and must not contain two consecutive slashes '//'.
