This field identifies the function of the message.
CODES
Function must contain one of the following codes (Error code(s): T86):
NEWM
New
New message.confirmation
REVR
Reverse
Reversal of a posting on a previously sent confirmation
CODES
Sub-function, when present, must contain one of the following codes (Error code(s): T85):
CODU
Copy Duplicate
This message is being sent as a copy, for information purposes and the message is a duplicate of a message previously sent.
COPY
Copy
This message is being sent as a copy, for information purposes.
DUPL
Duplicate
The message is for information/confirmation purposes. It is a duplicate of a message previously sent.
USAGE RULES
To reverse a posting on a previously sent message, Function is REVR. The reference in the linkage sequence must contain the Sender's reference of the message to be reversed.