ANTT0051I

Explanation
The XCOUPLE command with option option
is canceled because of a non-YES response to the ANTT0050A prompt
message.

System action
The command is canceled.

System programmer response
Reenter the XCOUPLE option command
and respond YES to the ANTT0050A prompt message. Abbreviations of
YES are not acceptable. If you are issuing the XCOUPLE command from
a CLIST or REXX EXEC,
place the response on the stack before running the EXEC.

Source
Extended remote copy (XRC).