FIX Messaging - MC - Logon (Type A)

Standard Header

M

Header

MsgType = A

Next expected message sequence number (MsgSeqNum<34>) value to be received.

This tag is optional for CHESS’s inbound messages but mandatory for CHESS’s outbound messages (Logon A acknowledge by CHESS).

User must be designated as an electronic messaging user. The AMO is to supply when logging in. Not returned in response from ASX.

FIX username. This tag is not case sensitive. For incoming messages into ASX, the Username<553> will be the same as the SenderCompID<49>.

For messages from the user:
It is the FIX username. This tag is not case sensitive. For incoming messages into ASX, the Username<553> will be the same as the SenderCompID<49>.

For messages from the ASX, it will be populated with ASX.

• N = No
• Y = Yes, reset sequence numbers

The new password must satisfy the below requirements: 

• Minimum of 15 characters in length

• Must be unique from the previous 12 passwords used

• Must contain:

• At least one English upper case character (A-Z);

  • At least one English lower case character (a-z);

  • At least one number; and

  • At least one of the following non-alphanumeric special characters: !@#$%^&*()_+|~-=\`{}[]:";'<>?,./)

1409

SessionStatus

O

int

Identifies the status of the FIX session. It is sent by the ASX. 

• 0 = session active
• 1 = session password changed
• 2 = session password due to expire (2 not expected in Production as passwords will have no expiry)