 16x |
Mandatory in mandatory sequence A
This field specifies the reference assigned by the Sender to unambiguously identify the message.
This field must not start or end with a slash '/' and must not contain two consecutive slashes '//' (Error code(s): T26).
The reference assigned to a message is used for cross-referencing purposes in subsequent messages, such as following confirmation and statement messages as well as queries. It is therefore essential for the identification of the original message sent that this reference be unique.
