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The Business layer, also referred to as the Application layer, entails the business transaction functionality provided by CME Globex. Once the client system has established a FIX session (Session layer), the client is able to transact business through the sending and receipt of Application layer messages.

Use this search bar to search topics within iLink Order Entry - Business Layer.

The Order Entry Application Layer consists of the following topics:

To avoid client systems impacts, CME Group recommends that client systems NOT submit iLink messages containing FIX tags that are not defined in the iLink message specification.