FIX services are available 24\/7 except during software deployments, which occur Friday evenings approximately every two weeks for UAT environments and monthly for Production environments.<\/p>\n\n\n\n
\n TT FIX Order Routing sessions are persistent by default and reset on Saturdays\n at 22:00 UTC.\n<\/p>\n\n\n\n
\n Clients may optionally define a custom daily reset time when configuring a FIX\n Order Routing session in Setup<\/a>.\n<\/p>\n\n\n\n Note<\/strong><\/span>:<\/strong> If a FIX client remains connected to a FIX session when either the default or custom scheduled reset time occurs, TT\u2019s FIX engine will send a Logout message.<\/p>\n\n\n\n By default, message sequence numbers for FIX sessions are reset when TT resets all FIX sessions. Message sequence numbers can also be reset, when desired, by setting Tag 34 (MsgSeqNum) = 1 and Tag 141 (ResetSeqNumFlag) = Y when sending a Logon (A)<\/a> message.<\/p>\n\n\n\n TT FIX will ensure ClOrdID (tag 11) uniqueness for:<\/p>\n\n\n\n For more information, refer to the ClOrdID tag description<\/a> in the New Order Single (D) message.<\/p>\n\n\n\n \n If your FIX client application disconnects and subsequently reconnects, TT\u2019s\n FIX engine will perform an internal recovery process to query our cloud based\n order book database and will deliver all unsent execution reports by applying\n an incremental sequence number that picks up where we left off prior to the\n disconnect. The session recovery process can be considered complete in all\n cases with a News message [35=B].\n<\/p>\n\n\n\n \n This eliminates the requirement for your FIX client application to detect a\n gap on the session level and request missed execution reports while\n disconnected. This also allows FIX client applications to failover seamlessly\n into a different datacenter without sequence number consideration.\n<\/p>\n\n\n\n \n If your FIX client application disconnects and was unable to process\n executions prior to the disconnect, TT\u2019s FIX engine supports the standard\n message replay mechanism specified by the FIX Protocol by honoring Resend\n Request [2] messages received from FIX client applications.\n<\/p>\n\n\n\n \n In extreme cases where your FIX client application unexpectedly disconnected\n and required intervention on your side to reset sequence numbers that resulted\n in a subsequent Logon with 141=Y and 34=1, TT\u2019s FIX engine will still perform\n a session recovery process that will query our cloud based order book database\n for executions marked as undelivered and apply an incremental sequence number\n to each message message. In this case, Logon [34=1], missed executions [34=2,\n 3, etc]. The session recovery process can be considered complete in all cases\n with a News message [35=B].\n<\/p>\n\n\n\n \n In the scenario where although TT delivered all relevant execution reports to\n your FIX client application, your internal system may have experienced an\n issue and was unable to process the messaging. TT\u2019s FIX Engine is aware of\n sent messages, but we are unaware of your application’s success or failure to\n process them. If your FIX client application also required a sequence number\n reset and cannot request a Resend Request [2] message, executions can be\n retrieved through our REST API [link to REST].\n<\/p>\n\n\n\n In order to add support CME Drop Copy 4.0 in the TT Inbound Drop Copy service, tags 5024 and 5979 have been added to the TT XML schema Service as shown:<\/p>\n\n\n\n \n <field number=’5024′ name=’StartSequenceNumber’ type=’SEQNUM’ \/> These tags will not appear in any messages used by TT standard outbound drop copy service or any other customer-facing FIX interfaces. <\/p>\n\n\n\n No customer action is required regarding these tags. <\/p>\n\n\n\n The FIX schema now includes the optional FIX Tag 18001. This optional tag is available in all order and execution report messages. In addition, these tags will not appear in any current messages in production and are reserved for future use.<\/p>\n\n\n\n FIX Order router now routes “Instrument Not Found” rejects to the Drop Copy session. The message appears in Tag 58 (Text) and includes the instrument lookup field (e.g., instrument_id, Name, Alias, RIC_Code, ect.) and value.<\/p>\n\n\n\n If a valid account and user exist on the order, the FIX Order Router will use those values, otherwise, it will use the Error Account + default user.<\/p>\n\n\n\n The IFOA mitigation system does the following:<\/p>\n\n\n\n FIX tags in Logon messages are validated such that any tags not valid for the FIX version of the Logon message will be rejected. For example, if a customer FIX 4.2 Logon message contains a FIX tag that is valid for FIX 4.4 but not FIX 4.2, that logon will be rejected.<\/p>\n\n\n\n TT receives execution reports (ERs) from multiple exchanges and publishes these to clients via TT FIX Drop Copy. When exchanges send unsolicited ERs in response to an IOC\/FOK order, EOD expiration or other exchange-initiated event, some will set ExecType\/OrdStatus on such ERs to Canceled (39=4; 150=4), while others set it as Expired (39=C; 150=C), or others may use a mix (39=4; 150=C).<\/p>\n\n\n\n In order to improve consistency across exchanges, TT Order Connectors normalize ExecType and OrdStatus for unsolicited execution reports as follows:<\/p>\n\n\n\n Operational Notes FIX services are available 24\/7 except during software deployments, which occur Friday eveni […]<\/p>\n","protected":false},"author":2,"template":"","meta":{"_acf_changed":false,"footnotes":""},"docs-category":[453],"class_list":["post-7074","doc","type-doc","status-publish","hentry","docs-category-getting-started-tt-fix-general"],"acf":[],"_links":{"self":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/doc\/7074","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/doc"}],"about":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/types\/doc"}],"author":[{"embeddable":true,"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"version-history":[{"count":0,"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/doc\/7074\/revisions"}],"wp:attachment":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/media?parent=7074"}],"wp:term":[{"taxonomy":"docs-category","embeddable":true,"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/docs-category?post=7074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}On-demand Sequence Number Resets<\/h3>\n\n\n\n
ClOrdID Uniqueness<\/h3>\n\n\n\n
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Handling Connection Problems<\/h2>\n\n\n\n
Handling Missed Messages<\/h2>\n\n\n\n
CME TT Inbound Drop Copy Support<\/h3>\n\n\n\n
\n <field number=’5979′ name=’RequestTime’ type=’STRING’ \/> \n <\/p>\n\n\n\nMockOrderFlag<\/h2>\n\n\n\n
Routing “Instrument Not Found” Rejects<\/h2>\n\n\n\n
IFOA Mitigation for FIX Order Routing<\/h2>\n\n\n\n
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FIX Logon Message Version Validation<\/h2>\n\n\n\n
Expired and Canceled Execution Reports<\/a><\/h2>\n\n\n\n
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