MessageEventSource (Tag = 1011, Type: String)

Used to identify the event or source which gave rise to a message.

Valid values will be based on an exchange's implementation.

Example values are:

"MQM" (originated at Firm Back Office)

"Clear" (originated in Clearing System)

"Reg" (static data generated via Register request)

Used in:

• Trade Capture Report Request (AD)
• Trade Capture Report (AE)
• Position Report (AP)
• Trade Capture Report Request Ack (AQ)
• Trade Capture Report Ack (AR)
• Allocation Report (AS)
• Allocation Instruction Alert (BM)
• Allocation Instruction (J)

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