Message ID set by Btwentyfour Open Commerce Platform.
ordrsp_Examples
<orderResponse text="Btwentyfour Example OrderResponse" environment="Production" status="ORDER_STATUS_REGISTERED" orderType="REGULAR_ORDER" currency="SEK" messageId="237356" messageDate="2020-08-26T12:19:05.167Z">
ordrsp_XPATH
/b24Message/orderResponse/@messageId
ordrsp_Type
Number
ordrsp_Sort
1600