iLink supports a value up to 32 bytes on inbound messages, but will return a truncated 20 bytes from the right on the response TargetSubID. Additionally, Regulatory systems will truncate to 18 bytes from the right. CME Group recommends all customers limit tag 50 to 18 bytes. In FirmSoft and Global Command Center queries for order status and cancellations, the value in tag 50 must be exact. This tag must: - be at least 2 bytes (characters) in length
- include alpha and/or numeric characters
This tag may include only the following non-alpha numeric characters - _ underscore
- - dash
- : colon
- @ (commercial) at
- . period
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