Please be advised that effective Sunday, July 14, 2013, CME Clearing will be enhancing its real-time FIXML Clearing Member Firm messaging API to include @AllocID2, which represents allocation level specific identifiers assigned by CME ClearPort. The attribute will only appear on the trade confirmations when one side is allocated to more than one account through ClearPort. The AllocID2 is currently echoed back to platforms which submit trades into ClearPort, and can be used to assist in reconciling clearing statuses of individual allocations.
Please note this is a new tag and will be added in the RptSide block of the FIXML message. The ID will appear on the cleared trade confirmation with the following format:
<RptSide Side="1" ClOrdID="C1779052" InptSrc="CPC" InptDev="API" CustCpcty="4" SesID="RTH" SesSub="X" AgrsrInd="Y" AllocID="456347563" AllocID2="3847638746">
This change will be made available for testing in New Release on Friday, July 5th, 2013.
If you have any questions or require further information please contact CME Clearing at 312-207-2525 or firstname.lastname@example.org.