Diagnosis
The required message characteristic &V1& is not contained in theselected process message. The message has not been sent.

Procedure
RESET N1
Check and correct the definition of the message category
in Customizing
in your control system if the message was sent by an external controlsystem
Call up the process message for change in the message monitor.
The current Customizing settings are now effective for the processmessage.
If necessary, add the missing characteristic.
Send the message.