• Fastmatch always requests for 2-way prices.
• The maximum number of prices rungs that Fastmatch can request is 5. If requested for fullbook, number of price levels published should not exceed 5.

• Though Fastmatch can trade on base and term currency, Tag15/ Currency in NewOrderMultiLeg will always be set to base currency. However, Amount/ Tag38 will reflect if the order is quoted based on base or term currency.
• Fastmatch can set up a maker client's session to stream prices to and accept order from Disclosed or Undisclosed clients. When an order originate from a disclosed client, maker will receive the actual client id/ code in party block [PartyRole=3/ ClientID] in NewOrder. Otherwise [for orders received from undisclosed clients], a generic client code is published [1000 is the generic ClientID value in UAT and Prod].
• Fastmatch offers NDF trading only in Singapore region. To comply with MAS regulation, NDF prices and ExecutionReport should always be populated with RMO [Recognized Market Operator] fields.
• ExecutionAck message from Fastmatch does not validate a maker's ExecutionReport. Any field with incorrect values in ExecReport is resolved manually. ExecAck is purely to ack a maker's Fill/ Rejection and to disclose actual taker's info.
• FastMatch Liquidity Management Team will liaise with LPs to understand if a maker will support 'TakerExpectation' fields and enable them accordingly. These are ExpectedResponseTime/ Tag9020 and ExpectedFillRate/ Tag9090. If a client sent ExpectedFillRate=80, it is expected that 80% of client’s trades are filled that day within the time provided in ExpectedResponseTime. There will be no real-time rejection/ penalty if a maker violated ExpectedFillRate or ExpectedResponseTime.
• Fastmatch sends an OrderTimeOut if it received an ExecutionReport after 50ms [agreed between Fastmatch and maker] of NewOrder. Fastmatch sends a DontKnowTrade if it received an ExecutionReport after OrderTimeOut. 
• Fastmatch are yet to confirm if a maker will receive an ExecAck in response to Rejected ExecutionReport.

Please note that the venue does not support FIX session synchronisation. We reset sequence number every time we logon.