This section describes the message flow for the Exchange drop copy functionality. FIX drop copy is designed to deliver real-time information about trading activity taking place at the Exchange and about order activity when orders are entered, modified, canceled or executed.

Two subscription types are available:

Session Reconciliation - consists of only trade-related transactions of a particular order management session.
Market Level Reconciliation - consists of order and trade-related transactions for the market order book, only available for OSL market surveillance partners.