10 Oct 2022


Eurex Exchange Readiness Newsflash | T7 Release 11.0 - Mandatory implementation of the FIA Execution Source Code (tag 1031) for Agent orders

Eurex Exchange Readiness Newsflash | T7 Release 11.0 - Mandatory implementation of the FIA Execution Source Code (tag 1031) for Agent orders

Dear Eurex Participant,

With this Newsflash, we would like to remind you about the mandatory implementation of the FIA Execution Source Code (tag 1031) with Eurex T7 Release 11.0.

The ETI/FIX LF Tag 1031 “custOrderHandlingInst” will become mandatory for all agency trading. Order entries and modifications without a submitted “custOrderHandlingInst” when the Trading Capacity Agency is used, will be rejected. 

FIA Execution Source Code, aka "tag 1031" is a FIA led industry initiative in conjunction with FIA Tech. The goal of the initiative is to provide futures industry participants with a standardized data schema that aims to clearly identify the execution method used for Exchange Traded Derivative trades at point of origin, allowing executing and clearing brokers to easily reference the appropriate brokerage rate for the execution method. For more information, please see

Important note: If you are not supporting the Tag 1031 initiative, you still have to send a valid value for Trading Capacity Agency orders. In this case, we recommend using the default value “D” to be sent on all Agency orders.

Further details on this topic that is part of Release 11.0 can be found on our Support site on under:

Support > Initiatives & Releases > T7 Release 11.0 > System documentation
Support > Initiatives & Releases > T7 Release 11.0 > Readiness Videos

As Trading Participants and Vendors need to prepare for this change and perform sufficient testing, we recommend to participate in the simulation environment and in the connection test to assure a smooth transition.

Learn now more about T7 Release 11.0 on our dedicated initiative page under the following link: Support > Initiatives & Releases > T7 Release 11.0. System documentation, circulars, timeline and much more information is available there for you.

If you have any further questions or comments, please do not hesitate to contact your Key Account Manager or send an e-mail to 

Kind regards,

Your Eurex Trading Operations Team

Visit the Next Generation ETD Contracts webpage for all your Trading and Clearing content!


All Trading Participants of Eurex Deutschland and Vendors

Target group: 

Front Office/Trading, Middle + Backoffice, IT/System Administration, Auditing/Security Coordination



Support > Initiatives & Releases > T7 Release 11.0

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