Inbound Actions - Update Incident (BP) creates new Incident

[SNowUser11]

Hello Experts,

I am facing an issue. Although it is working for the OOB inbound actions 'create incident','create incident (forwarded) and Update Incident (BP). I am getting perfectly results as per these actions. Now My scenario is 

- I want to update an incident when an email comes as forwarded for any incident emails like example

FW:Incident INC0001234 has been opened on your behalf 

what could be the simple way to achieve this i tried creating another 'Update Incident (BP) with action as Forward but it seems created a new incident running this. Not getting why? Any suggestion please do not want to go with scripting unless it is not achievable in inbound actions

Thanks

[SNowUser11]

Yes I have kept this new update action order to 50 and the original is 100 OOB. I tried even with out any conditions but it is creating incident eventhough processing update inbound. Why is this so? if this processed update it should not. I see in email logs that update one only got processed. Not getting anywhere

Any guidance what should be next steps 

Thanks

[SNowUser11 · Accepted solution]

Just in case what at last I did to work if that helps anyone

-Created new Update Inbound Action (as Forward), Stop processing -checked.order=10

-script which helped

--------------------------

gs.include('validators');
var str = email.subject.toString();
var regex = new SNC.Regex('/INC\\d{7}/im');
var incnum = regex.match(str);
if(incnum!= null)
{
var target = new GlideRecord('incident');
target.addQuery('number',incnum);
target.query();
if(target.next() && target.getValue('state') != IncidentState.CLOSED)
{ 
target.work_notes = "reply from: " + email.origemail + "\n\n" + email.body_text;
target.update();
sys_email.instance = target.sys_id;
sys_email.target_table = target.getTableName();
sys_email.update();

}
}

-------------------------------------