AcctIDSource (Tag = 660, Type: int)

Used to identify the source of the Account (1) code. This is especially useful if the account is a new account that the Respondent may not have setup yet in their system.

Valid values:

'1'	BIC
'2'	SID code
'3'	TFM (GSPTA)
'4'	OMGEO (AlertID)
'5'	DTCC code
'99'	Other (custom or proprietary)

Used in:

• Execution Report (8)
• Order Cancel Reject (9)
• New Order - Multileg (AB)
• Multileg Order Cancel/Replace Request (AC)
• Trade Capture Report (AE)
• Order Mass Status Request (AF)
• Quote Request Reject (AG)
• Quote Status Report (AI)
• Quote Response (AJ)
• Position Maintenance Request (AL)
• Position Maintenance Report (AM)
• Request for Positions (AN)
• Request for Positions Ack (AO)
• Position Report (AP)
• Trade Capture Report Ack (AR)
• New Order - Single (D)
• New Order - List (E)
• Order Cancel Request (F)
• Order Cancel/Replace Request (G)
• Order Status Request (H)
• Quote Request (R)
• Quote (S)
• Quote Cancel (Z)
• Quote Status Request (a)
• Mass Quote Acknowledgement (b)
• Mass Quote (i)
• Bid Request (k)
• Registration Instructions (o)
• Registration Instructions Response (p)
• New Order - Cross (s)
• Cross Order Cancel/Replace Request (t)