Security Definition Request (MsgType = c, FIXML = SecurityDefReq)

The Security Definition Request (c) message is used for the following:

Request a specific Security to be traded with the second party. The request security can be defined as a multileg security made up of one or more instrument legs.

Subscription for security status can be optionally specified by including the SubscriptionRequestType (263) field on the message.

See Volume 3: "Security Definition, Security Status, and Trading Session Message Scenarios" of FIX Specification

Tag		Field Name	FIXML	Req'd	Comments
<Standard Message Header>				Y	MsgType = c
320		SecurityReqID	SecurityReqID	Y
321		SecurityRequestType	SecurityRequestType	Y
<Instrument>				N
15		Currency	Currency	N
58		Text	Text	N	Comment, instructions, or other identifying information.
354		EncodedTextLen	EncodedTextLen	C	Must be set if EncodedText (355) field is specified and must immediately precede it.
355		EncodedText	EncodedText	C	Encoded (non-ASCII characters) representation of the Text (58) field in the encoded format specified via the MessageEncoding (347) field.
336		TradingSessionID	TradingSessionID	N	Optional Trading Session Identifier to specify a particular trading session for which you want to obtain a list of securities that are tradeable.
625		TradingSessionSubID	TradingSessionSubID	N
555		NoLegs	NoLegs	N	Number of legs that make up the Security
=>	<Instrument Leg>			C	Required if NoLegs (555) > 0.
=>	556	LegCurrency	LegCurrency	N
263		SubscriptionRequestType	SubscriptionRequestType	N	Subscribe or unsubscribe for security status to security specified in request.
<Standard Message Trailer>				Y

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