I have an issue with Business Rule logic under incident

[RahulS890357628]

I have created a Business Rule , run after update and delete. In advance section I have created one script, from that script I am able to return incident fields but I also need which fields are updated  and once deleted I need incident Id. 

I have added code snippet there i use one variable updatedFields that also not working to identify which fields are updated.

Thank you advance.

Code block

(function executeRule(current, previous /*null when async*/) {

var gr = new GlideRecord('incident');
gr.get(current.sys_id);
var restMessage = new sn_ws.RESTMessageV2('Dqlabs Web Test', 'Send Webhook');
restMessage.setEndpoint('https://589c-103-21-79-42.ngrok-free.app/api/channel_action/servicenow_hook/');
restMessage.setStringParameterNoEscape('incident.number', gr.number);
restMessage.setStringParameterNoEscape('incident.short_description', gr.short_description);
restMessage.setStringParameterNoEscape('incident.state', gr.state);
restMessage.setStringParameterNoEscape('incident.priority', gr.priority);
restMessage.setStringParameterNoEscape('incident.urgency', gr.urgency);
// Add the event type parameter
var eventType = 'incident_' + current.operation() ;

var commentContent = "";
if (current.comments.changes()) {
var gr2 = new GlideRecord('sys_journal_field');
gr2.addQuery('element_id', current.sys_id); // Match the current record
gr2.addQuery('element', 'comments'); // Target the comments field
gr2.orderByDesc('sys_created_on'); // Sort by most recent
gr2.setLimit(1); // Fetch only the latest entry
gr2.query();

if (gr2.next()) {
commentContent = gr2.value.toString(); // Fetch the actual comment
eventType = "comment_updated";
gs.log('Exact Comment: ' + commentContent);
} else {
gs.log('No comments found for this record.');
}
}

var updatedFields = [];
var fieldsToCheck = [
'short_description', 'state', 'priority', 'urgency', 'comments'
];
fieldsToCheck.forEach(function(fieldName) {
var oldValue = previous.getValue(fieldName);
var newValue = current.getValue(fieldName);

// Log field changes for debugging
gs.log('Field: ' + fieldName + ' Old Value: ' + oldValue + ' New Value: ' + newValue);

// Add updated fields to the list
updatedFields.push({
field: fieldName,
old_value: oldValue,
new_value: newValue
});
});

// If any fields were updated, include them in the webhook
if (updatedFields.length > 0) {
restMessage.setStringParameterNoEscape('updated_fields', JSON.stringify(updatedFields));
}

restMessage.setStringParameterNoEscape('incident.comment', commentContent);
restMessage.setStringParameterNoEscape('event_type', eventType);
var response = restMessage.execute();
var httpResponseStatus = response.getStatusCode();
gs.log('Webhook response status: ' + httpResponseStatus);

})(current, previous);