CCMS Auto-React: Operating System Commands

Hi Gurus,
I want to run an operating system command in the event that an alert is raised in my CEN CCMS system.
I have set up the operating system command in SCEN (using SM69) and tested it -- no problems. I have used the example given on help.sap.com. It works great from SM69 or SM49.
I have created a custom MTE Auto-Reaction Method that is a copy of the SAP standard and it points to the logical name of the op system command I created in SM69.
But, when I assign the Auto-Reaction method to an MTE and kick off the auto-reaction, nothing happens. I have tried assigning it auto-reaction method as a method for a local MTE and also as a central auto-reaction, but I get nothing.
Please help me see what I am missing.
Many thanks in advance,
Nic Doodson

Hi Michael,
Thanks for the response, I hope you can help.
Logical command is called: Z_NI_ALERT_OVO
It calls the operating system command: /usr/sap/tmp/test.sh
It allows additional parameters.
test.sh is :
#!/usr/bin/sh
echo $2 alert from $1 Message $5 $4 > /usr/sap/tmp/alert_$3.txt
I can run this from SM49/SM69 and it works fine.
Method is: Z_SEND_ALERT_TO_OVO
Calls function module: SALO_EXECUTE_SYSTEM_COMMAND_V2
Can be executed on: Any Server
Execution Method: Periodically in Dialog Process
Parameters:
COMMAND : Z_NI_ALERT_OVO
PARAMATERS : <blank>
REACT_ON_ALERTS : red
MTENAME : SID/SEGMENT/CONTEXT/OBJECT/ATTRIBUTE
PARAMLIST_1: COLOR DATE_TIME MSG
PARAMLIST_2: ID
Help!
I can only think there is something about it being a local/centrally distrubuted auto-reaction method...I'm assigning it as a cenrally distributed auto-reaction method.
Any input would be great.
Cheers,
Nic

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