Sequence Number Management
Periodically disconnecting the FIX connection and resetting the message sequence number promotes a stable trading environment for all users. By default, Paxos does not reset message sequence numbers. Rather, we rely on the clients to implement a method that suits their needs. The two most common approaches to sequence number management are:
- Client sends 141=Y once per day, typically on the initial Login, resetting MsgSeqNum to 1. This is the preferred method.
- Client performs a weekly sequence number reset using the 141 tag. Typically, this is performed at ~5:00pm ET every Friday (or other business day) to mitigate any intra-day message interruptions.
NOTE: Paxos support may contact you regarding connection practices to prevent performance degradation.