Hi Ramesh,

I could not find in the documentation a way to get the root time from the alarm that triggered the correlation rule. Find below a snippet that should allow you to retrieve the root time:

using System;
using System.Collections.Generic;
using System.Linq;
using Skyline.DataMiner.Automation;
using Skyline.DataMiner.Net;
using Skyline.DataMiner.Net.Filters;
using Skyline.DataMiner.Net.Helper;
using Skyline.DataMiner.Net.Messages;

public class Script
{
public static void Run(IEngine engine)
{
try
{
RunSafe(engine);
}
catch (ScriptAbortException)
{
// Catch normal abort exceptions (engine.ExitFail or engine.ExitSuccess)
throw; // Comment if it should be treated as a normal exit of the script.
}
catch (ScriptForceAbortException)
{
// Catch forced abort exceptions, caused via external maintenance messages.
throw;
}
catch (ScriptTimeoutException)
{
// Catch timeout exceptions for when a script has been running for too long.
throw;
}
catch (InteractiveUserDetachedException)
{
// Catch a user detaching from the interactive script by closing the window.
// Only applicable for interactive scripts, can be removed for non-interactive scripts.
throw;
}
catch (Exception e)
{
engine.ExitFail("Run|Something went wrong: " + e);
}
}

private static void RunSafe(IEngine engine)
{
ScriptParam paramCorrelationAlarmInfo = engine.GetScriptParam(65006);
string alarmInfo = paramCorrelationAlarmInfo.Value;
string[] parts = alarmInfo.Split('|');
int alarmID = Tools.ToInt32(parts[0]);
int dmaID = Tools.ToInt32(parts[1]);
int elementID = Tools.ToInt32(parts[2]);
int rootAlarmID = Tools.ToInt32(parts[5]);

DateTime rootTime = GetRootTimeFromAlarm(engine, dmaID, elementID, rootAlarmID);

engine.GenerateInformation($"[INFO]|Run|RootTime:{rootTime}");
}

public static DateTime GetRootTimeFromAlarm(IEngine engine, int dataminerId, int elementId, int rootAlarmId)
{
// Get the alarm tree ID for the given root alarm ID
AlarmTreeID alarmTreeID = new AlarmTreeID(dataminerId, elementId, rootAlarmId);

// Preparing the message
GetAlarmTreeDetailsMessage getAlarmTreeDetailsMessage = new GetAlarmTreeDetailsMessage(alarmTreeID);

// Send the message and get the response
AlarmEventMessage response = (AlarmEventMessage)engine.SendSLNetSingleResponseMessage(getAlarmTreeDetailsMessage);

return response.RootTime;
}

Hope it helps.