Skipping the RefToMessageId test for ICS2
<ul>
<ul>
If the usage profile of an inbound AS4 message is ICS2, the RefToMessageId (/Header/Messaging/UserMessage/MessageInfo/RefToMessageId) is set and the action value (/Header/Messaging/Action) is one of the following list, the test if the referred message does already exist in the system is skipped now
<li>IE3N11 (ENS Pending Notification)</li>
<li>IE3R01 (ENS Registration response)</li>
<li>IE3Q01 (Do not load request)</li>
<li>IE3N02 (ENS not complete notification)</li>
<li>IE3N03 (Assessment Complete notification)</li>
<li>IE3N04 (Additional information request notification)</li>
<li>IE3N05 (High risk cargo & Mail screening notification)</li>
<li>IE3N09 (AEO Control notification)</li>
</ul>
</ul>